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Affordable Quality for the Timex Computer User 


April/May 


QUICKSILVA 

THOMAS B. WOODS 


21st CENTURY -f^HUNTER 
ELECTRONICS JDANTA 
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SUPPORT FOR THE 2068 


HARDWARE 


BANK SWITCHING FOR THE TS 1000 Part 2 
Expand To 96K - by Paul Hunter 

PROGRAM 

LJ U LI I —I for your 1000-1500 computer 


REVIEWS 


iBULk RATE! 
(US POSTAGE I 
i PAID 1 
i PERMIT#!51i 


Por tsmdu th 
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45662 











BACK ISSUES OF T-S HORIZONS ARE NOW AVAILABLE 

Each issue brings you approximately thirty-two pages of usable information, 
prograiTi listings, product reviews, programming articles, hardware projects, and 
applications you can use in your home or business. T-S HORIZONS features 
nationally kncwn writers like Gordon Young and Paul Hunter. And now you can get 
the back issues you missed for only $1.25 per issue! 

Issue HI Creating and Saving Files, Uninterruptible Power Supply, Repeat Key 
Module, Numerical Analysis, and more! 


Issue #2 Memory Reduction, Matrix/Cursor Input, User-Friendliness, Graphics 
Tutorial, Reset Switch Project, and more!! 

Issue H3 Animation, Simple Loading Aid Project, File Protection, Differential 
Equations, Ham Radio, and more!!! 


Issue H4 Bank-Switching for the TSlOOO-Part 1, Error Recovery, TS2068 Edge 

Connector Schematics, Converting to T/S BASIC,Simpson's Rule, more!!! 


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MAM HACK!* tlAiCt 

IMMOCALO 


BANK BWTTCHNQ FOR TIC T8 1000 Ppl 1 
Expond To B6K • by Htfipr 


Enclosed is 
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T‘5 HarKinx 

Affordable Quality for the Timex Computer User 
2002 SUMMIT ST. PORTSMOUTH. OHIO 45662 


Table o-f Contents 


FORMAT 

SIZE* 

IX 

2X 



Full page 

6-1/4 X 

9 

$125 

$119 

ENTER 

4 

2/3 page 

4-1/2 X 

9 

100 

95 

Guest Editorial 

6 

1/2 page 

6-1/4 X 

4-1/2 

75 

71 

by Stan Ueit 



3 X 

9 



Reader INPUT 

8 

1/3 page 

4-1/2 X 

4-1/2 

65 

62 

Program Tips 

11 


2 X 

9 



by Rois Harder 


1/4 page 

3 X 

4-1/2 

35 

33 

Numerical Analysis 

12 

1/6 page 

2 X 

4-1/2 

29 

21 

by Ken Lewis 


1/9 page 

2 X 

3 

17 

16 

"WORM" Word Processor 

14 

2 inch 

2 X 

2 

12 

11 

by Gordon Young 


1 i nch 

1 X 

2 

6 

5 

TS 1000 Bank Switching 

16 

*No charge 

■for ad 1 

reduct 

i on. 


by Paul Hunter 


FORMAT; Black and 

white 

only. 

Ads 

Graphics Program 

20 

may be reproduced ■ 

from an ad in 

an- 

by Johnson and Swartz 


other publication. 




Reviews 

21 

CLOSING DATES; 15th o-f 

month 

pre- 

T-S NEWS 

27 

ceeding issue date 

. 



USR NEWS 

30 

FREQUENCY; 

Monthly 

• 




Ther^^s something NEU on the horizon. 


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Hail form with check or money order to: 

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Portsmouth, OH 45662 the C __i ssue. 


3 



Dear Fellow Timex and Sinclair Computer Users, 

Thank you -for your patience. T-S Horizons is intended to be 
monthly but as you can see, you are holding the April/May issue oi 
T-S Horizons in your hands. Income tax matUrs were only one ot 
the reasons we are late. At any rate thank you tor bearing with 
us. 

There is a lot ot news concerning the Timex computing world these 
days - largely bad news, but enough good news that we are 
encouraged. Ue hope you will be too. 

I got some critical comments regarding last issue's cover, and I 
suppose 1 deserve it. Tm usually an optimist but Timex's 
lay-down-and-die attitude really upset me. The *2068 tombstone* 
represented the Timex Computer Corporation only, and not the 
TS-2068 itself, Timex users in general, or the future of T-S 
Horizons. Actually I'm optimistic about the last three. 

Hope for the TS-2068? 

Due to recent ads selling Timex products at 1/2-off and last-minute buying by TS-1000 owners, the 
stockpile of TS-2068's at Timex is nearly gone. All of the TS-2040 printers have been sold (except for the 
few being returned by dealers). Some software and TS-2020 program recorders are still available for an 
unknown period of time. The TS-1000 is out of production. However the TS-1500 is still being made on a 
limited basis for educational use. (You know, those correspondence schools that advertise in magazines 
like Popular Hechanics, that offer to teach you how to program and give you a free computer.) 

However if you've heard rumors that someone is seeking the rights from Timex to market the TS-2068 and/or 
TS-1000, they're not just rumors. Our sources at Timex say no less than 20 parties are inquiring about the 
prospect - some of them seriously. As we understand it Timex will manufacture the 2068 if they can get a 
firm order for 25,000 units. It will be the same machine, but will not carry the Timex name. (This makes 
some sense. Timex was perfectly happy with the TS-1000 as long as it was *selling itself.* But when they 
really had to market it and the 2068, they dropped them.) 

So it seems there is some hope for the Timex (?) computers. (Notes Clive Sinclair still has made no 
reassuring gestures to American users.) 

Publishino - Another One Bites the Dust 

- In case you haven't heard Sync has sunk. 

The March/April issue was the last. When 1 heard the news, 1 called their offices to find out why. 
Incredibly, the guy 1 talked to said it was because Timex got out the computer business - as if they 
thought all of us loyal Timex users would say, *Well Timex is gone. Let's all go buy Ataris and cancel our 
subscriptions to Sync!* When I reminded him that when Sync was first started there was no Timex computer - 
only the 2X80 - a Sinclair computer importad from England, he said he never thought of it like that. 1 
suspect the true reason was a falloff of advertising income due to excessive ad rates. 

- Timex Sinclair User is still dead, despite rumors to the contrary. The only hope 1 see is if they get 
dollar signs in their eyes over Sync's dropped advertisers. 


T 


HMEX TakM A Liekiac 



BAM( 8WITCHNQ FOR nc TS tOOO Fwt 1 


Exftnl To MK • by PaU HiMw 



S Hiriiinj 

MWM* IV M Tlm« CompiMr Unr 






Another one bites the dust... 

- Bad news for TS User (newsletter) fans. Despite the big talk in the April issue <*If you are a (TS User) 
reader then you are OK. TS User is full of optimism. TS User will continue production and coverage of 
Timex and Sinclair Microcomputer products...), in a recent phone conversation, Derek Stubbs informed me 
that his company was moving on (into robotics and software development - not Timex software), and dropping 
the Timex market. He had offered in that same issue to establish a clearinghouse for third party 
merchandise but, of course, that will not materialize now. 


So what's left? 

T-S Horizons. To be honest 1 hate to see Sync, TSU(mag), and TSU(nl) go. They were all good resources for 
us at T-S Horizons and other Timex users. But TSH is here to stay. We may be late occasionally but trust 
us - we plan to be around for a long time. 

Some other worthy T-S dedicated publications are: 

-SyncWare News, P.O.Box 5177, El Monte, CA 91734 (for the technically inclined - a nice publication). 
-Basic, 3705 Biscayne B1., Miami FL 33137 (BASIC programs for the ZXBl/TSl000/1500). 

-Syntax, RD 2, Box 457, Harvard, MA 01451. 

-Also see USR News for some very good Timex Sinclair user group newsletters. 


In addition there are two other magazines we would like to mention: 

-The Computer Trader (1704 Sam Drive, Birmingham, AL 35235). This magazine covers all computers, from 
Apple to 2X81. In a typical Issue there are four to six articles for the Timex-Sinclalr. Currently they 
are running an excellent machine code tutorial series. 

-The Computer Shopper (P.O.Box F, 407 S. Washington Ave., Titusville FL 3279d). In a recent phone 
conversation with the magazines' editor, Stan Veit (who provided this issue's Guest Editorial), I was told 
that they are planning to add two new features for Timex-SincalIr users: a general Information-type column 
and a telecommunications column specifically for Timex users. 

Third-Party Support 

Although a few companies are getting out of the Timex-Sinclalr market (most notably Memotech), most of the 
significant software and peripheral companies are hanging in there. The folks at Byte-Back told us, their 
business has tripled since Timex 'pulled the plug.* 21st Century Electronics has a full line of TSIOOO 
products, and is developing many TS20d8 products. They have 5 






















A GUEST EDITORIAL 
by STAN VEIT of The Computer Shopper 


It is almost two years ago 
since I attended a press lun¬ 
cheon at the Tavern On The 
Green in Central Park, New 
York City. The purpose of the 
meeting^vas to announce that 
Timex Corp had formed Timex 
Computers and would take 
over the sales of Sinclair Com¬ 
puters in the United States, 
Clive Sinclair was there in 
smiling fellowship with the top 
brass of the Timex Corp. Their 
message to'the press was that 
Timex (who had always 
manufactured the ZX80 and 
ZX81 low-cost computers), 
would now apply their 
marketing expertise to com¬ 
puters as well as watches. They 
would also provide extensive 
software and peripheral sup¬ 
port to the Sinclair machines 
making them highly useful to 
small business, education, and 
science. 

We members of the press 
were impressed. Here was a 
company who’s watches and 
clocks had a reputation for 
low-cost and quality and they 
were going to bring the same 
qualities to low cost com¬ 
puters! We believed it as much 
as the Timex people did. 

Timex upgraded the ZX-81, 
which they called the TS-1000 
by adding-additional memory. 
They advertised the computer 
and sold thousands of them 
throughout the country. The 
Timex TS-1000 became the in¬ 
troduction to personal com¬ 
puting for many people. 

A few months ago Timex 
fired all the people left in the 
Computer division and folded 
it into the watch operation. 
Then last week they complete¬ 
ly got out of the s^es of com- 
6 puters, explaining that they 


couldn’t make any money from 
them. Small wonder, the 
TS-1000 that cost me $99.00 
plus $49.00 for the 16K 
Memory Expansion was now 
selling for $39.00, with the 
Memory Unit and some soft¬ 
ware! 

I blame the VIC-20 and 
TRS-80 Color Computer and 
the TI99/4A for the final death 
of the TS-1000. VIC-20 and 
CoCo showed the public that 
you could get a real computer 
for ^bout the same price as the 
Timex plus the expansion 
module. They both had real 
keyboards and good software. 
You could get reliable cassette 
loads, or just plug in a cart¬ 
ridge and use the machine. 
There were third party expan¬ 
sion units that worked. Radio 
Shack and Commodore even 
provided a printer and disk 
drive for those who could pay 
for them. 

Now nobody expects a com¬ 
pany to stay with a money los¬ 
ing product, but when you sell 
millions of items to the public 
you have some responsibility 
toward those who bought the 
product on the basis of your 
claims about its merit. 

Sinclair was not much help 
to the users of their machines, 
but they made no bones about 
it. You understood when you 
bought a ZX80 or ZX81 that 
you were pretty much on your 
own. Timex however promis¬ 
ed to do better, they offered 
help from such things as the 
user hotline (1-800-24TIMEX) 
and the COMPUTER CLUB 
and a Newsletter. None of it 
ever worked. The Hot Line 
was usually busy and if you got 
through,the chances were that 
they couldn’t answer your 


questions and they never call¬ 
ed you back. The other support 
mechanisms for the 2068 might 
have worked if Timex hadn’t 
fired Dan Ross and his staff. 

The notice of the complete 
demise of the Timex Com¬ 
puters came through a one 
page P.R, Release from Ruder, 
Finn & Rotman who do the 
public relations for Timex. It 
was dated February 21, 1984 
and said that Timex was 
withdrawing from the home 
computer business. It quoted 
Mr. C.M. Jacobi, Vice Presi¬ 
dent of Marketing and Sales for 
Timex whP said,’ We believe 
instability in the market will 
cause the value of inventories 
to decline, making it difficult 
to make a reasonable profit. 
Further, we are concern^ that 
those conditions will strain 
trade relations between 
manufacturers and retailers, a 
relationship which the com¬ 
pany values very highly.’ Note 
that he says nothing about rela¬ 
tionships between the com¬ 
pany and computer users! In 
regard to service of Timex 
Computers, Mr. Jacobi said, 
’Consequently, the company 
has decided to withdraw from 
the retail portion of the home 
computer busisness. Consumer 
warranties will be honored and 
out of warranty service will 
continue’. 

We called Mr. Jacobi to ask 
him to expand on the com¬ 
pany’s support policies. We 
asked questions about the level 
of support that Timex would 
continue to offer for software 
and the sale of proprietary 
chips and peripherals. We 
never got to speak with Mr. 
Jacobi. His spokesperson said 


‘We are considering the 
answers to your questions, we 
will call you when we have 
answers for you’. They never 
called back. 

We then called the P.R. firm 
who said, ‘We can not give you 
any additional information, 
call Mr. Jacobi at Timex< 

I wish you could see some of 
the letters we have received 
from Timex/Sinclair users. 
They believed in the product 
and spent a lot of money on it. 
I myself, taught a course in 
Timex/Sinclair Programming 
and purchased a computer for 
$99, a 16K Memory Expansion 
for $49, a Printer for $99, a lot 
of books and software. I have 
about $400 invested in this 
machine and I know others 
who spent a lot more. We 
never expected a company like 
Timex to ditch us without any 
consideration. If they were as 
concerned for their customers 
as they are for their dealers, 
they would still be in the com¬ 
puter business. 

Is the Federal Government 
going to let them get away 
with this one? Are Computer 
Owners as important as Snail 
Darters? It is one thing for a 
Company to go Chapter 10 or 
Chapter 11 (Bankrupt) and 
end belly-up, its another thing 
for a solvent company to just 
dump customers who bought 
their products in good faith. 
We are consumers who need 
protection, the Very Low Cost 
Computer User is an En¬ 
dangered Species! 

. Don’t write me about it, 
write your Congressman! 


secured the rights to Tintex's word processor for the 20d8, which 
they say is as good as an/ UP for an/ computer on the market. 
(2l5t Century, 6813 Polk St., Guttenburg NJ 07093, 

210-869-2616). Gesang Associates (P.O.Box 452, Randallstown, 

MD 21133, 301-922-0767) also has a full line of TSIOOO and 
2068 products. 

All of the following companies are expanding their product lines 
or maintaining status quo (in addition to those who have ads in 
this issue); 6. Russell Electronics, E-Z Key, Aerco, E. Arthur 
Brown, Computer-Wear, Paul Hunter, Rorapak. Thomas Woods has been 
especially vocal about his support for the Timex computer line. 

The Future? 

There are encouraging signs for Timex-Sinclair users. 

-Timex User Groups are as active as ever. 

-New companies with new products are still coming out; JRC 
Software (see T-S News); Hinny Electronics Graphics and 64K 

package for the TSIOOO (see last issue)} Interface Design High 
Speed Interface (see TSH #3). 

-Some companies and user groups are trying to 'import* support for 
the TSIOOO and 2068 from English Sinclair users who weren't 
subjected to Timex's demise. 

Hopefully some good will come of it. 

-As 1 stated above the TSIOOO and 2068 may be resurrected in the 
near future under a new name. 

One thing that is important for us to do now is to 'strengthen the 
things that remain.' Companies that are now supporting TS-related 
products need to know there are people 'out there* who are hanging 
on and will buy their products. I think if we all band together we 
come through this in great shape. 

Rick Duncan 


50BB 


TIMEX 


QUICKSILVA 
THOMAS B. WOODS 

? ? 

21st CENTURY ^ 

ELECTRONICS Banta , 

BYTE-BACK Sonw^UtE 

- o. misscii E-z 

_?_ JRC ? 

,6,,i,R20 ? SOFTSYIMC 


7 



Dear Rick, 


K E H L-' t H! 


INPUT 


I would like to clear up a misconception that 
Art Gindin has about VU-CALC (TS-Horizons #3 
Memocalc). I also experienced the same 
difficulty trying to get a print out on my 
Seikosha GP-IOOA printer and I also blamed 
the software. 


I believe the letter points out sufficient 
problems to warrent making future 2068 users 
aware of. 

Mr. Heifner has been a valuable asset to our 
group in evaluating and reviewing new pro¬ 
grams for our newsletter. I hope you find 
his article as valuable as I did. 


The truth is that the Memotech interface and 
Seikosha printer will not accept Sinclair 
graphics (in this case the black bars that 
make up the grind in VU-CALG). Many Sinclair 
programs will not print on the Seikosha and 
those that do will print in a 32 column 
format. (Syber Software makes a cassette 
program called MEMOSHA which will correct 
this problem but I have not been able to get 
it to work and it requires extensive program 
modifications which I think would be beyond 
the capability of the type of reader Art is 
aiming his articles at). VU-CALC should not 
be "abandoned" however because it will accept 
text in the grid which Memocalc will not. 
The problem is not in the documentation. It 
works fine with the Timex 2040 printer and 
the ZX-81 printer. I have encountered many 
people who have run .into this problem and it 
may be worth mentioning in your magazine. I 
did hear of one individual who reprogrammed 
VU-CALC with an acceptable ASCII symbol such 
as "$" instead of the graphic bars. 

I hope you will forward this information to 
Art and hopefully to your readers. Apparent¬ 
ly Memotech, Sinclair and Timex are not 
giving it out. 

Very truly yours, 

James A. McKnight 

3708 Strayhorn 

Mesquite, Texas 75150 

Gentlemen, 

Enclosed please find article on Timex Program 
8 VU-CALC for the T/S 2068. 


Peter J Callinicos 
President 

MILE HIGH CHAPTER TIMEX USERS 

FROM: Mark A. Heifner 

37 E. Colorado Ave. 

Denver, CO 80210 
(303) 744-1137 
(303) 722-9067 

TO: Timex Computer Corporation 

Several weeks ago I purchased a copy of the 
Vu-Calc for the 2068 and was eager to use it 
for my business application, having found the 
Vu-Calc for the TS 1000 very useful, but 
rather limited. I was immediately impressed 
by the expanded number of rows and columns, 
the more creative method of working with 
data, and especially the almost limitless 
number of formulae that could be entered - a 
severe problem with the TSIOOO program. 
After a few minutes I realized that the 
program was essentially useless for any 
serious applications and I had to return it 
for a refund. 

Two aspects in the 2068 Vu-Calc make it 
difficult to use. One is the lack of sepa¬ 
ration between the boxes. When all the boxes 
are filled on a certain portion of the 
display the only way to distinguish between 
one box and an adjacent one is to move the 
cursor around. All the numbers run together, 
end to end. Although that problem is manage¬ 
able but a nuisance in comparison to Vu-Calc 
for the 1000, one other problem cannot be 
remedied in any way. 



In writing the program it apparently was 
decided that a display of 4 columns instead 
of 3 was important. Because of the limited 
space on the 2068 display in normal mode it 
was necessary to drop the lines separating 
the boxes and reduce the number of numeric 
entries in each box to 7 from the 8 as in the 
1000 version. 

Vu“Calc, like its big brothers and sisters 
Visicalc and its variations for the larger 
computers, is most useful for working with 
dollars and cents. Seven entries, including 
the decimal point, limits the program to 
values less than $10,000.00 whereas the 1000 
version allows figures up to $100,000.00. I 
am sure you can see that this limitation 
makes the program useless for all but the 
simplest application. 

As I see it, the deficiencies of the 1000 
program were corrected quite well, but in the 
process nobody apparently noticed that a new 
set of problems had been created that pro¬ 
duced a program which is almost useless. The 
2068 is a very capable machine with lots of 
dandy features and I was both surprised and 
disappointed that such a trashy program had 
been allowed to go out on the open market. A 
few suggestions might be helpful to correct- 
ing this situation with this program. 

A lot of people I know that have the 2068 
have gone to using monitors rather than a TV. 
The picture is so much better on the monitor 
and good monitors are nearly as cheap as a 
good black and white TV. Why not produce a 
Vu-Calc which uses the expanded display 
modes? If a printout is needed on the 2040 
printer I am sure it could be worked out that 
two consecutive printouts would be sent to 
the printer with each printout showing half 
the screen. Alternatively, you might return 
to a 3 column display with separations or 
even a 2 column, dual screen display or some 
variation on that. The Important thing is to 
maintain many of the features already there 
but allow at least 8 numeric entries per box. 
Maybe it could be worked out that the user 
would even be allowed to select the number of 
entries per box, up to some reasonable limit ^ 
and the display would adjust itself accord¬ 


ingly. I doubt that having more than 9 
entries per box would be useful. I do feel 
that a minimum eight is needed. 


In conclusion, spreadsheet programs are so 
very useful it seems a shame to produce a 
program for the 2068, a very capable machine, 
that is essentially useless when compared to 
the similar program for the 1000. 




INVASION OF RUSSIA, 
JULY, 1941 

16K, 32K, or TS2068 


You command the German Invasion of Russia to take 
Moscow. 

T/S 2068 Game has: 

• Large map of Eastern Europe and U.S.S.R. 

• Diyisional and Brigade Strength-Panzer, Infantry, Calvary, etc. 

• Supply lines • Zone of Control 

• Effects of terrain and weather 

• Actual Reinforcements 

• No fast reflexes required. 

32K-IDENTICAL TO TS/2068, EXCEPT: 

• large 4 screen map board • No effects of terrain 
16K-IDENTICAI TO 32K GAME, EXCEPT: 

1 screen map board 
T/S 2068 - 

00 S « H 


32K 

16K 


- $17.9^V 

- 17.95 1+$2.1 

- 14.95/ 


VISA & Mastercard Accepted 

Dealer inquiries welcome 

Copyright 1983, 1984 


SHARP’S 

127 NINE MILE RD. 
SANDSTON, VA 23150 
(804) 737-4895 


9 


A message from THOMAS B. WOODS 


Dear Fellow Timex Computer Owner, 

The bad news that Timex has dropped out of 
the personal computer market comes to me as a 
Itremendous disappointment. I put my faith in 
their machines and for the last two years 
have worked long and hard to build a software 
business with a reputation that I think is 
one of the best in the industry. 

In the current situation all of us are 
wondering what will happen next. There is 
one thing I'll say, however. When the dust 
settles, I intend to still be here. I am 
determined to continue providing quality 
software for both the TSIOOO and the new 
TS2068. 

I owe my business to you who use these two 
marvelous machines, and you deserve far more 
than to be simply dropped and forgotten. I 
for one. Intend to keep my computer running. 
From me, you can expect to see an optimistic 
future of more programs and more applications 
for the Timex. 


It is in this rallying spirit that I announce 
my latest product: PRO/FILE 2068. The 
original, release date was scheduled for June 
1984, but with circumstances being what they 
are, I feel that this program released now, 
will demonstrate my dedication to the support 
of the TS2068. 

The manual for PRO/FILE 2068 is not yet 
complete, but the program itself is finished, 
extensively tested, and is ready to be 
shipped with abbreviated operating in¬ 
structions and a promise that the 
manual--expected to be 100 pages—will be 
mailed to every customer just as soon as it 
is printed. 

Enclosed is a detailed description of 
PRO/FILE 2068. You'll notice right away that 
this program is a significant advance over 
the older but still extremely popular ZX 
Pro/File used on the TSIOOO and 1500. 

PRO/FILE 2068 is a masterpiece if I say so 
myself! 


By pulling together, by communicating, and by 
sharing ideas and talent, I am convinced that 
we Timex computerists will emerge from the 
present chaotic state unscathed, and the 
computer itself will be as strong and popular 


las ever. 


FOB JTIST YOU CAN 

QRAB THE BOLL EY THK HORIIS 

TOCO TECHNOLOQY 

•nnounces Stock Market Software 
for your TIMEX 1000 and TS g066 

The TECHNI-ETOCK SOFTWARE SYSTEM la a stock 
market analysis program designed by a pro 
trader for use by pros and beginners alike. 
The program analyzes your favorite stocks 
using statistical and technical averages In 
order to predict future stock price trends. 


The System Includes: 


1) HANDSOME BINDER 

2 ) 26 PAGE INFO GUIDE 

3) RESEARCHED WORKSHEET 

4) REFERENCE SYSTEM 

«:) PR0®A>D1ED CASSETTE 


To Order: Send us the names of your favorite 
6 stocks along with a check for 
$24.9? for the TIMEX 1000 version 
(9 stocks and $34.9?-TS 2066) to: 


for use 
16K or more 


TCX:0 TECHNOLOGY $3 

POBOXBB shipping 

SAN1A CLAUS. IN 47S7» 


As always, GOOD COMPUTING! 


Thomas B. Woods 

P.O.Box 64, Jefferson, NH 03583 


ZX PRO/FILE 

A machine language information storage 
and retrieval tool for 16-64K. 

* Multi-word search capability 
A Instant file access 


* Ordered displays 

* Definable printer functions 

* Totally flexible file size 

* 59 page tutorial manual 

* Newsletter updates 

THE MOST ADVANCED 
FiLE MANAGER YOU CAN 
GET FOR THE TIMEX 

Ask for free specifications or send $16.95 
for cassette and manual to: 

THOMAS B. WOODS 

P.O. Box 64, Jefferson, NH 03583 
Phone: (603) 586-7734 

Vi<ui Mastercard welcome 


10 






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TIMEX-SINCLAIR programs to save you money. 
I Payoff shows how much credit card and charge 
accounts really cost, how to pay them off and 
save $$$. Payout shows where your hard-earned 
money is going. On cassette, $12.95 each post¬ 
paid. Specify TS-1000 w/16K, TS-1500 or TS- 
2068. Ace Software, 2 East Oak Avenue, 
Moorestown, NJ 08057 


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GOLF HANDICAPPER is a menu driven 16K BASIC program 
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NUHERICfiL QNhLYSIS 


LEAST SQUARES METHOD OF 
CURVE-FITTING POINT DATA TO 

y=ax+b or y=be 
by Ken lewi s 

The standard approach to fittinf^ a 

set of data points to a line y=ax+b 

is to use the method of least 

squares. The least squares method 

provides an unambiguous fitting 

procedure which minimizes the 

deviation of the data points frcxn 

the fitted line in the following 

sense. Let Y. represent an 

experimental value and let be a 

value from the equation y=ax^+b, 

where xj is a particular value of 

the variable which is assumed to be 

free of error. It is desired to 

obtain the "best" values of a and b 

such that for e. = Y.-y. =Y.-ax.-b, 
1 1^11 1 ’ 

N 2 N 2 

the error E= 5 eT= ;jg(Y.-ax.-b)'^ is 

i 1 j 1 1 

a minimum, where N is the number of 
data points. Since xi and Yj[ are 
unaffected by the choices of a and 
b, the minimizing relations are 
dE/da=0 and dE/db=0. These result 
in the two equations: 


both sides to get In y=ln bt-ax, and 
define y^=ln y and b^=ln b. Now we 
have y'=ax+b’ , so the method 
outlined above applies. 

THE PROGRAM 

To execute, this program, enter the 
"RUN" mode. The first prompt is 
"INPUT PAIRS OF DATA" and "ENTER 
POINT 1". The point is entered as 
follows: x^, enter, y^, enter. The 
new prompt is "ENTER POINT 2" and 



the answer then appears with a and 
b expressed numerically. 

EXAMPLE 

Fit a straight line to the given 
data using the least-squares 
criterion. 


X 

1.1 

2.9 

4.3 

6.2 

f(x) 

50 

43 

28 

25 . 


a Sx?+b Sx.= Sx.Y 
]_ 1 11 

a 2 Xj. + bN = S Y^ 

Solving for a and b, these values 
can be expressed in terms of the 
input data only: 


After entering the "RUN" mode, we 
iirmedtately get the prompt "INPUT 
N-NO. OF DATA". Since there are 4 
points, enter the number 4. In 
response to the prompt "ENTER POINT 
1", the values 1.1 and 50 are 
entered. We are then 


a= 


Sx.Y^ 

SY^ 5 N 

— b= 

SXi SY. 

_ 2 

SXi sx. 

SN 


S Xi2 S Xi 

S Xi E N 


This is the least-squares method. 
The approach can be appl^^ to fit 
data to the curve y=be‘^ in the 
following manner: take the log of 


proipted;'TINIER POINT 2", and 
the values 2.9 and 43 are 
input, and so on. The answer 
is printed out, i.e., 

"THELINE WHICH FITS THE DATA IS: 

Y=5.3011G18*x + 55.716711 " 





lO REM L5T5QC' 

REM i_ER;5T SOURRE FIT TO 
30 REM R LINE FOR N E^RTR 
>.'3 DIM Xi 100:1 
36 DIM F (100:i 

4-0 PRINT "INPUT N-ND. HF OCTC” 
50 INPUT N 
55 CL5 

60 PRINT "INPUT PflTP;=. HF naTO- 


10 REM L5T50X 

b- 95 'r "SOURRE FIT TO 
30 R^M B*c/.P i:fl^x:i FOP N 
DIM Xi:i00i ” 

36 DIM F I 100-I 

TmI-? N-NO. of Di: 

INPUT N 
55 ULS 

P0 PRINT "INPUT DaTD<^ ,-,cr r.,- 


70 

FOR K=1 TO N 

70 

FOR 

K =1 TO 

75 

INPUT .>:. 1 K '1 


I NR 

JT >: 1 K 1 

60 

INPUT FiKi 

U 0 

I NR 

UT F (K 1 

50 

100 

NEXT K 

LET SUMi=0 

62 

SF 

CLS 

LET 

FiK)=LN 

110 

LET SUM2=0 

50 

HEX 

T K 

120 

LET 5UM3=0 

100 

LET 

SUM1=0 

130 

LET SUM4.=0 

110 

LET 

SUM 2 =0 

14-0 

FOP. L=1 TO N 

120 

LET 


150 

LET SUMl=SUM1+XIL) 

130 

i-ET 

SUM4=0 

160 

LET SUM2=SUM2 + X' (L'! *>:' I'L'! 

14-0 

FOR 

L = i TO 

170 

LET SUM:3=5UM:3 + F iL'i 

l50 

LET 

SUM! =Fi 1 

160 

LET 5UM4.=5UM4- + X 'L' +F n't 

160 

LET 

SUM2 = 5U 

150 

Nt:XT L 

170 

LET 

5UM3=5U 

200 

LET D = 1 •' f N*5UM2-:5.UMl-^;=ii iMii 

160 

LET 

Si iMm. =:=,.■ 1 

2 X 0 

LET A0= i 5UM2*5UM3-SUMl-»-:=iUM4 

150 

NEX 

r L 

*D 

220 

LET PI = I-5UM1-»5UM3 + N*5UM4.:! * 

2 00 
210 

LET 

LET 

D = 1 y H * 
A0= iSUh 


5 PRINT "THE LINE UHICH F 
DRTR 15:" 

? PRINT "■ 

5 PRINT "Y= ";R1 ;“•»>; + " : 

) STOP 


230 PRINT 
HE DRTR IS 
2^0 PRINT 
£ w’ 0 P‘ K X N"^ 

’ ; H X ■ ‘X 

260 STOP 


Cl D=l/ (N^SUfiS-SUf-li-^^a!H- 
ET R0= ! SUM2'»5UM3-SUMl-^:5i. 

P'i' Hi= -SUM1*5UM3+N*5UMj 

PINT "THE EXP WHICH FiTi 


; EXP (R0 ) ; " *E') 


PROGRAM 

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NAUGATUCK, CT 06770 

TIMEX/SINCLAIR 1000/ZX81 
TRADEMARK TIMEX SINCLAIR 





















Do you need a word processor that will work 
on any printer with the interface you have? 
Would you like to write your text in 30, 40 
or whatever column width you want? I know I 
did! MEMOTEXT requires the MEMOTECH inter¬ 
face, WORDSINC II only prints on the Timex 
printer and the others (those with names I 
forgot after finding out they did not work 
very well), fell short of working on the 
machine code, I came up with a usable pro¬ 
gram, which I have called "WORM", for lack of 
a better name. This program has: 

**Left/Right justification 
**User defined column width 
**6,000 character text file 
**Dual mode operation 
**Global editing (insert/delete) 

**Character counter 

**Upper/Lower case (for full size printers) 
**Machine code fast typing 
**Wrap around screen operation 
**And more 

The nice thing about this is that, you can do 
all the programming for it by reading this 
and 2 more issues of this magazine. 

If you have never worked with machine code 
and are afraid to tackle this, don't be. 
Just follow directions closely. This month I 
will provide you with the first steps. Once 
we get the machine code entered, the rest 
will be much easier. There is over 2K of 
machine code that is entered into 4 REM 
lines. I will provide you with an assembler 
to enter the codes and a listing of the codes 
in each line. In addition, a checksum can be 
-j/j, used to test your entries for assurance. We 


will make your 16K TS-1000 computer a very 
usable word processor. 

Begin by turning on the computer and putting 
it in the FAST mode. Now make line 1 just 
like that in figure 1. After typing all of 
this in, press ENTER. It must be exactly 
like the figure shown! When this has been 
done, create line 2 with exactly the same REM 
statement as in figure 1. Do this by using 
the EDIT command, then press DELETE, which 
will erase the line number "1". Then press 
2. Repeat this procedure to create lines 3 
and 4, with the same REM statement. 


At this time, SAVE everything onto tape! DO 
NOT attempt to edit these lines again. 



0 


FIGURE #1 



FIGURE #2 



















































Now, enter the BASIC assembler of figure 2. 
This will be used to enter the codes. When 
entering codes for line 2, 3 and 4, you will 
have to change the address in line 9977 (more 
on that later). You should now have four REM 
lines and the assembler starting at address 
9977. Again, SAVE everything onto tape (use 
the other side of the tape just as a 
precaution). 

When using the assembler, you will be 
entering the codes as listed in figure 3. In 
using the assembler, you simply enter a code 
(press ENTER) and continue until you reach 
the end of the listing. The machine code 
list has 6 codes across and are to be entered 
left to right, top to bottom. You can make a 
correction by pressing 333. This will 
backspace and correct a wrong entry. You 
might want to stop and SAVE your entries 
along the way and to do this, just get the 
recorder ready and press 555. When all the 
codes have been entered, enter 999 to stop. 

Now you should have line 1 finished and can 
check your entries by a simple checksum 
routine that adds each number in the line to 
produce a sum of all your entries. Do this 
by entering: 


If you RUN the program at line 3000 you 
should get the sum: 58243 

If this is the answer you got, then so far, 
line 1 is complete! If not, you need a 
program that will PEEK each address between 
16514 and 17154 to check your entries. I 
have found that some of my readers will 
accidently make a wrong entry and not get the 
checksum number correct. If this is your 
case, add these lines: 



This will help locate an error. You will 
still need to determine the address and make 
the correction. 


Next month I will, give you the codes for 
line 2 and 3. I can't over emphasize the 
importance of your machine code entries. A 
wrong entry could crash the program or worse, 
write a hundred wrong entries over others, so 
be careful! You should have no problems, but 
if you do, write me and I will help you out. 
More in the next issue! 





Gordon Young 
P.O.Box 2411 
Vista, CA 92083 








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BANK SWITCHING FOR THE TS 1000 - PART 2 
By; Paul Hunter 

The second part of this series will describe 
some of the hardware so that construction 
work can progress while the software is 
developed and tested. 

It seemed probable from the outset that more 
and more peripherals would be added to the 
system as time passed so the first task was 
to build an expansion interface to buffer the 
TIMEX/SINCLAIR signals. Such expansion 
boards have been described in the past and 
this one is not much different. 

EXPANSION BOARD 

The interface described here uses a "COMPUTER 
CONTINUUM" board (since I had one) but the 
circuit can equally well be put together on 
perforated project board with wire wrap or 
point-to-point wiring. The "COMPUTER 
CONTINUUM" board is very well made, costs 
$35, and makes life a lot easier. The board 
comes with provision for memory-mapped I/O in 
the 8 to 16K region and as a result the 
decoding suggested is quite complicated. 
Without much loss of versatility, the four 
ICs used in the decoding were replaced by 
one-half of a 74LS02 quad NOR gate (see 
Figure 4) -- partly because I did not have 
the 7425 required. The only restriction 
caused by this modification is to disallow 
use of internal RAM -- it is disabled by 
ty ing RAMCS high. 

The buffer ICs used on the board are a 
74LS245; three 81LS95; and one 74LS365 (or 
367). If you put together your own interface 
you might prefer to use a combination of one 
74LS245 (for data) and three 74LS244 (for 
address and control). Such an interface has 
been described by JOHN OLIGER in the WINTER 
and SPRING issues of SQ. If you wish to 
modify a "GOMPUTER CONTINUUM" board for this 


interface, the instructions are summarized in 
Figures 2, 3, and 4. The interface is 
described in Figure 1. Note that the signal 
BUSEN is the interface buffer enable (ACTIVE 
LOW). 

After building the interface, test it by 
plugging it into the computer with a periph¬ 
eral RAM pack. Test the use of the 8 - 16K 
space if you have a device that uses that 
area. The "COMPUTER CONTINUUM" board can be 
inserted into the rear expansion socket of a 
ZX81/TS1000 just like any other peripheral. 
Alternatively, the ZX81/TS1000 board can be 
removed from its case and plugged in verti¬ 
cally -- this is useful when an external 
keyboard has been, or will be, added. 

MEMORY INTERFACE 

The next step in the project, the memory 
interface, was built on a RADIO-SHACK project 
board 276-152A using wire-wrap techniques. 
This board has a male 22/44 0.156" edge 
connector which matches the sockets on the 
expansion board. The female connector to 
match is readily available at RADIO-SHACK and 
elsewhere. The wire-wrap connections used 
allow easy modification and later expansion 
(and also easy correction of design errors). 
The position of the memory interface in the 
scheme of things is shown in Figure 5 and the 
schematic for the part constructed this month 
is illustrated in Figure 6. 

Operation of the circuit is as follows; The 
device is mapped in I/O space to avoid any 
conflict with memory. The 74LS30 generates a 
negative-going pulse when A0,A1,A2,A5, and A6 
are high and I/ORQ, WR, and A7 are low. This 
pulse is inverted and used as the clock-pulse 
for the 74LS74 D-type flip-flop. On receipt 
of the clock-pulse the flip-flop latches the 
data on A3 and A4. The LEDs provide confir¬ 
mation. Note that no data lines are used in 
the device -- this uses up more of the I/O 
space but is economical in hardware. The 
clear inputs to the 74LS74 are automatically 

















ftooAf 


brought low on power-up or upon loss of Figure 2 Modifications to the COMPUTER 
power. CONTINUUM expansion board 


After building this part of the interface try 
the following test. Plug the board into your 
expansion interface (or with a suitable 
socket ^directly into your computer) and power 
up. Neither LED should be lit at this point. 
Since the SINCLAIR BASIC has no IN Or OUT 
commands, the routine to service this port 
must be written in machine code. Enter the 
program: 

10 REM 123 
20 INPUT A 
30 POKE 16515,A 
40 RAND USR 16514 

Then poke in the machine code: 

POKE 16514,211 
POKE 16516,201 

Now the program can be RUN. When prompted, 
enter the address 111 -- the first LED should 
light. RUN the program again and enter 119 
-- the first LED should go out and the second 
one should come on. The address 103 will 
clear the latch and the address 127 will 
light both LEDs. The outputs of the 74LS74 
will be used to switch between memory banks. 

In next months installment the memory bank 
will be described, the memory interface will 
be completed, and if there is room, some more 
software will 
be discussed. 


ii 

4 





1. Omit sockets ICl, IC2, IC4, and IC9 

2. Jumper together: 

on socket 7 pins 13 and 14 ( NMI ) 

pins 15 and 16 (INT) 

on socket 8 pins 6 and 7 ( ROMCS ) 

pins 9 and 10 ( WAIT ) 

pins 11 and 12 (BUSAK) 

3. Disengage the IC pins from these jumpered 
sockets 


4. Replace diode D1 with a wire jumper 

5. Add the small piggy back pc board illus¬ 
trated in Figure 3 over the space normal¬ 
ly occupied by ICl, IC2, IC4 and IC9. 
Signals to this pc board are derived as 
follows: 

BUSEN pin 2 of IC9 (grounded by jumper) 
^MCS pin 6 of ICl 

RD pin 5 of IC9 

DIR pin 8 of IC9 high for read by 

CPU low for write 

GND pin 7 of IC2 

+5V pin 14 of IC2 

6. Insert a 74LS02 into the piggy back board 

7. Note that both J1 and J2 on the expansion 
board are inserted to supply +5V and +9V 
to the expansion * 


O 


74LS02. 


Figure 4 


Pigecr{OKj 
pin 1 o\ 74L245 

(4^14-. BEAo By cpo 

U>w I wetTfi ey tf*o 


18 





LIT YOUR 

TIMEX COMPUTER 

WORK FOR YOU 

PEfSONAL • BUSICSS • OmTlONAL PROGRAMS: 
On cassctt* • menu driven • printar optionai 
Availabie tor TS 100(V1500/2000 Seriee 


MAIUNQ U8T*16K: Holds 100 names, ad¬ 
dresses and phone numbers • Searttm -Soria 
• Lists - Changes - Deletes - Prints ... 9.98 

MAIUNQ UST-MK: Does same as 16K only 
holds 425 names, etc... 9.9S 

MAIUNQ U8T-2068: For the TS 2058. Same 
as 16K, holds up to 300 names, etc... 9.9S 

INVENTORY-16K: Holds 150 items with com¬ 
ments (Serial Noe., etc.) Searches - Lists - 
Changes • Deletes • Prints.9.95 

INVOITORY-54K: Sams as 16K orriy holds 
750 Kerns with comments.9.95 

INVENTORY-2068: For the TS 2068. Same 
as 16K only holds up to 600 items ... 9.98 

CHECKINO-18K: Lists 25 deposits - 80 
checks - Adds interest - Deducts Serv. 
Charges - Searches by #, name, date or 
arrwunt - Prints list of deposits, acct. & checks. 

.9.95 

CHECIC1NO-64K: Same as 16K only lists 100 
deposts - 500 checks .9.95 

CHECKINO-2068: For the TS 2068. Same as 
16K only lists up to 100 deposits arrd 350 
chocks .9.95 

GRAOEBOOK: Teacher's time saver • Sell¬ 
adjusting memory - Computes mearrs, stand¬ 
ard deviations, variance and coefficient of vari¬ 
ation - Ranks by weighted or unweighted av¬ 
erage .9.95 

FINANCIAL RECORD KEEPER-16K: Holds 
20 files for household or small busmess ex¬ 
penses arxj/or irxxxne • Reviews, corrects or 
charrges information - Prints list for tax pur¬ 
poses . 14.98 

FINANCIAL RECORD KEEPER PLUS-48K: 
Does same as 16K - also keeps up to 500 
checking transactions - Reconciles checkbook 
with bank statement.19.98 

FINANaAL RECORD KEEPER PLUS-2068: 
For the TS 2068. Same as above with 350 

checking transactions . 19,95 

SALES FILE-16K: Retail business program 
can be used directly as a cash register to keep 
records for bookkeeping and inventory. Holds 
ISO Hems & 25 accounts • Prinia accounts, 
Inventory & receipts.14.98 

SALES FILE-64K: Same as 16K only holds 
600 Kerns & 100 accounts .14.98 

SALES FILE-2068: For the TS 2068. Same 
as 64K.14.95 

INVOICE CONTROL: Keeps track of, and 
prints, invoices for the smalt business. Self¬ 
adjusts according to amount of memory avail¬ 
able .14.95 

APPOINTMENT CALENDAR-16K: Enler date 
and list up to (8) appointments per day for up 
to (31) days - Change - Delete • PrirK - Save 
on tape.9.95 

APPOINTMENT CALENOAR-2068: Same as 
above.9.95 

SEND FOR FREE CATALOG 
Any three $9.95 tapes for $24.95 - Add $1.00 
per tape shipping - Ind. res. add 5% sales tax 
- Sand Cert. Check, M.O., VISA or M/Card No. 
w/Exp. Date. 

HEATH COMPUTER SERVICES 
950 E. - 52 S., Greentown, IN 46936 
Phone: (317) 628-3130 




































A Text and Graphics Program 

by Harry Johnson III and Gary Swartz * 

This program not only lets you create 
graphic drawings, using the directional 
arrow keys to plot out a picture, it also 
allows you to input text into the drawing. 
To insert text, position the cursor at 
the desired location using the arrow keys 
<5-8), press "P", type in the desired 
words or characters, and press ENTER. This 
causes the text to printed starting at the 
cursor location. You are then returned to 
the plotting. Instructions are included in 
the program. 


X-i- ( i hND iNKc-Y $ = “'S ” j 

Y’+(i hND INKEYa = ‘’7") 
Y $ = ” 5 ‘' ]i 

3 THEN LET ¥=4-3 






CU 1 : 111 : 1.1 i; i.l Cl.! i; i.l f'lj (t.l 








































REVIEWS 


BOOK SeOiEU 
by Ed Sinipson 

(Publisher of Hwite Business News) 

HOW TO h^RKET TOUR T]HEX/SINCLAIR SOFTWARE 
by R.A.Fauro 
Sof bar k Assoc. 

210 Fifth Ave. 

New York H1 lOOlO 
52 pages, 8xll 
$12.95 


market plan, software security, sofbare 
publishers, mail order selling, magazine 
aduertising, direct mail marketing, and other 
opportunities. These sections are 3 to 10 pages 
long and are sometimes further divided into 
smaller subsections, Of particular value are the 
chapters about developing a market plan, mail 
order selling, and direct mail marketing. The last 
chapter -covers everything missed in the other 
sections and even includes tips on how to get free 
publicity. 


This hook provides a complete overview of hoi/i to 
market the Timex/Sinclalr software that you have 
written. Many sources of further information are 
included in each section. This manual covers all 
the information that a potential software 
freelancer needs and is written in an easy to 
understand wel1 organized style. 

This book is divided into the following sections: 
Defining and developing your product, developing a 


This book covers everything you need frc<Ti product 
pricing and packaging, to marketing methods. It is 
an excellent starting point for the freelancer and 
will greatly enhance you^- chance of successfully 
marketing your software. 1 like the books style 
and content but only wish the author would have 
lengthened some sections. Overall this book is an 
excellent value for the Tirsex/Sinclair freelance 
programmer (and can help any beginning software 
marketer). 


ANALYSIS 

16K RAM, 8K ROM TS-1000/ZX-81/TS-1500/ 

TS-2068. Stock selection guidance. 

Fundamental stock analysis. One-time 
input using data in newspapers or 
library. Make sound BUY/HOLD/SELL 
decisions. Uses Linear Regression 
techniques to forecast expected 
earnings and corresponding market 
price data. 

Send $17.99 plus $1. postage and 
handling for each tape and tutorial 
ordered. 

PORTFOLIO 

16K RAM. 8K ROM TS-1000/ZX-81/TS-1500/ 

TS-2068. Investment portfolio file 
management. Maintain records of shares, 
cost, performance and selling-price- 
targets of up to 50 stocks, bonds, 
mutual funds. Menu driven. List file, 
records; record maintenance or file 
update options. Save data across pro¬ 
gram SAVES/LOADS. Input current market 
prices & program recalculates overall 
portfolio and individual security 
performance as well. 

Send $15.99 plus $1. postage and 
handling for each tape and tutorial 
ordered. 

ORION'S BELT ENTERPRISES 
807 N. Fairway Rd., Glenside, PA 19038' 

(PA RESIDENTS add 6% sales tax) 

Please specify computer model. 

" ' —-. -' M l... II , ,.W 


COMPUTERS 

TRADER 
MAGAZINE 

ir ^ ^LIMITED TIME OFFER ^ ^ ^ 
BAKER’S DOZEN SPECIAL! 

$12.00 for 13 issues 

Regular Subscription $15.00 Year 
Foreign Subscription: $55.00 (air mail) 

$35.00 (surface) 

Articles on MOST Home Computers, 
HAM Radio, hardware & software reviews, 
programs, computer languages and construc¬ 
tion, plus much more!!! 

Classified Ads for Computer & Ham Radio Equipment 

FREE CLASSIFIED ADS 

for subscribers 

Excellent Display and Classified Ad Rates 
Full National Coverage 

CHET LAMBERT, W4WDR 

1704 Sam Drive • Birmingham, AL 35235 
(205) 854-0271 
SampjeCopy $2.50 








SOFTWARE REVIEWS by 

Tex Fau.c^'tte- 



••SCREEN-CRLC" CoPyriSht 1982 by Bant* 
SoftWAr*^ 8088 HiQhwood Wjiy> 
0r*Ti9»viiU> Cfl 95662 

SCREEN-CRLC 1ft a TftAl cutt •Iftctronic 
ftPrftftdfthftftt with a number of 
interefttin® feAtureft, The documentAtlon 
contftinft 23 PeQeft Pluft An Index. Rbout 
8 PA9eft consist of a "tAmPle Problem" 
which/ when followed ftteP by step by 
the first time user/ will serve as a 
very 9ood demonstrAtlon of the Pro9rAms 
PotentiAl. 


stAtements Arc limited to 80 chArACters 
(keystrokes)/ An intermedlAte result 
msy be stored in An unused cell to be 
oPerAted on by a second function 
statement to complete the more complex 
oPerAtlons. These celled function 
statements may use the majority of 1- 
stroke functions such as EXP/ RND/ TRN/ 
SIN/ COS/ SQR/ RBS/ etc. 

SCREEN-CRLC has sufficient menus and 
sub menus to rate as "User Friendly"/ 
at least for one experienced in the use 
of spreadsheets. The novice in this 
area would benefit from a more 
extensive tutorial than that suPPlied 
in the documentation. I did manA9e to 
achieve a few accidental "breaks" while 
u£in9 the Pro9rAm/ but was able to 
recover and return to the Pro9ram 
without losin9 data. Printout is done 
with use of the COPY statement/ and 
those with wide Printers and 
Pra9rammin9 ability mi9ht want to query 
Santa concernin9 Possible modifications 
to take Advanta9e of their individual 
hardware caP abilities. 


The Pro9ram will hold uP to 1008 
"cells" with a minimum of ten elements 
in each direction. Three columns and 
six rows are displayed at a time/ with 
the center (active) column and row 
displayed in a removable box. Display 
way be shifted one Position in any 
direction with cursor keys/ three 
Positions with shifted cursors/ or a 
;^’JumP" can be called to any Position by 
jlPecific column and row number. The 
kser can desi9n a sheet of any size 
jiwithin the 1008 cell limit). Banta 
Recommends a Preliminary desi9n be laid 
put with Pencil and Paper/ as the 
'<Jefti9n is entered as (columns) x 
jCrows)/ i.e./ 10X20/ and the 2068 does 
ihe rest. Data SRVED can be re-loaded 
on a new sheet of the same dimensions. 

r 

1 have a stron9 suspicion that this 
pro9ram was ori9inally written for the 
§Pectrum. 1 base this on the fact that 
the instructions for insertin9 text 
(^ention that the Shift 8 must be used 
for insertin9 sPaces/ and that attempts 
to use the space key will result in a 
?break". This is not true for the 2068 
in my experience. If it should happen., 
a GO TO 1200 is supposed to recover. 
The instructions also contain reference 
to " IF...THEN...ELSE command"/ which 
may confuse some 2068 users! Not to 
worry/ specific instructions for this 
command follow/ and an example is 9iven 
later on in the manual. 

In sPite of these minor deficiencies/ 
the documentation seems to be adequate. 
Once one has become familiar with the 
Pro9ram and entered some data to work 
on/ numerous manipulations of the data 
may be Performed. While called function 


"SCREEN FILE" CoPyri9ht by 
Software/ 808B HiShwood 
0ran9evale/ CR 95662 


Banta 

Way/ 


SCREEN FILE is B#si8ned to run on any 
Sinclair ZK-81 Oh Timex Sinclair with 
16K RRM. The casette comes with 5 Pa9es 
of documentation which Includes a l-l/'2 
Pa9e "sample Operation". Pro9ram is 
recorded once on both sides of the 
casette. 


SCREEN FILE features simple menu 
options and screen Prompts and could be 
used for a variety of applications 
ran9in9 from a simple name/ address/ 
Phone number file to a file containln9 
uP to 6 additional lines of data 
foUowlno the Prt-dimtnsloned name/ 
address/ etc. blocks. Files may be 
searched by name/ number/ or element of 
* *»*'-ch line"/ and may be 
modified/ saved and Printed. Re-loadIn 9 
time for a file contalnln9 data is 
dependent on the amount of data stored/ 
which may be in excess of 17/800 
characters. 


While SCREEN FILE Showed an excellent 
response to keyboard input/ there are a 
few features I was not haPPy with. When 
a file WAS Printed (evidently with the 
COPY command) the menu selections are 
Printed as the first line. This could 
be trimmed off with knife or scissors/ 
but who wants to bother?. l also 
manaOed to achieve a "keyboard lock" 
while attemPtln9 to "nODIFY" a file and 
was unable to recover from that 
condition without total loss of data. 


Conclusion- SCREEN FILE needs a bit of 
modification. 


\ 




devoted 


"GRIDLOCK 

SOFTWARE,. 

92014 


The "GRIDLOCK" 
©amee for 
T i meX'^S i ric I a i r 


casette coTitains 
the umexPand 
computers. 


-hTcT a missir)9 

*niF ba entering coordinates on a 15 x 
20 9rid. "Robot" lets you repack 
cartons,. aQain by entry of coordinates 
in a from "to" sequence. "Easy Plot" 
IS a simple Pro9ram to display the Plot 
of equations for Y as a function of X. 

The carton which contains the cassette 
indicates the Program is for a9es 10 UP 
I believe that 2-BIT SOFTWARE is 9uilty 
° .L ■ underestimation of th*' 

soPhistip,tion of todays kids,, and would 
not hesitate to turn these Programs over 
^o kids from grades "K" on uP,. with a 
bare minimum of instructions! 


BOOK REVIEW bs Tex F,uc»tt. 

BASIC 

lies sybeJ '*■ 

o Iric./2344 S: 

Bwrkeley^ Cfl 94710. 


PROGRAMS IN 
■t, Copyright 
xth Street, 


The author, Stanley p 

boor'^Jf iFArojch'ln hf! 

o? H. Provides » serlM 

b«lS Of ^ISsiC ’’''‘’*7"“ the wist 

ceeirel°%K;ib«'‘ 

combi ^ i”” Which may be 

with the expanded TTskT^Tx’s [ 000 ^ 
programming knowledge is required! ‘ 

featuring calm laf <«•-,« ©..^tate. 

Payments, monthly 

-pTir e-iii", 

contains simPle data anal 5 


our g?iSr^, had to expand 


e ♦f’e '■ight keyboard, 

IS? cop“‘' "O*'»top'' ‘t up ,0 you, TS1000/ 

‘ ■‘"’'"0 Stieod Fuodons (like 

1 * ^ Schematic of the computer 

3.C.,., p,.„,o 


compiden, you eXSu^^’'"’'”' iT-XSltpUi 

W.M. - Camden, SC 

.. looks great, you’ve got a fantastic product there,” 

_____ R. j. - Cypr ess, CA 

MULE Electronics - Dept.aiop 

Lincoln Blvd, 51195 * 

Venice, CA 00231 * * 


For 16K TSIOOO, 1500 & ZX8f 

20 PROGRAMS 

ON 2 CASSETTE TAPES 

for the amazingly low price of 
not $39.95...not $29.95...0NLY $19.95 

(TS2068 version only $29.95) 




Save money, learn about the exciting world of home comput¬ 
ing and have fun doing it with the new HOME-PAC™ from 
SIMPLEX SOFTWARE. 

COMPUTER LITERACY 


Designed with the beginning computer user in mind, the 
HOME-PAC covers more application areas than any other 
software package available. Discover and explore educational, 
recreational, home-finance, graphics & utility applications. 
The HOME-PAC includes such exciting programs as star 
invader, biorhythms, checkbook balancer, statistics, Comp-u- 
sketch, animals, micro-organ (music), machine language 
monitor and many (12) others. Also included is a well written 
easy-to-follow user manual that takes you step-by-step through 
each of the 20 challenging programs. 

HIGH QUALITY 

The programs are well written and user friendly. The 2 
cassette tapes are high in quality and unconditionally guaran¬ 
teed for 1 year to load & run. The 21 page user manual is in a 
class by itself, and the packaging includes free Norelco type 
hard storage cases. 

MONEY BACK GUARANTEE 
We are so confident that the HOME-PAC represents the 
most outstanding value in home computer software available, 
that we are offering an unheard of 10 day no-risk money back 
guarantee. 

10 DAY NO-RISK GUARANTEE 
If not completely satisfied, return in original condition for a 
prompt refiind. 


Order today, offer good for limited time only! 


SIMPLEX SOFTWARE 



Dept. B2, 220 N. Centre St., Merchantville, N.J. 08109 

Please rush my order for the HOME-PAC, with 10 day no risk 
guarantee, at $19.95 ($29.95 for TS2068 version) each plus $2.00 
postage & handling. Outside USA Add $2.00 per order. 

Q Payment Enclosed $_Residents of N.J. 

Add 6% Sales Tax. 

Charge My Q Mastercard O Visa 


Card No._Exp. Date_ 

Signature- 

Name_ 

Address_ 

City_State_Zip 

□ Send me a FREE brochure. 


I^RDUARE REVIEW 
by P. Donnelly 

ITEM: DK TRONICS KEYBOARD 

FROM; DK TRONICS, SUFFERN, WALDEN, ENGLAND 

(799-26350) 

PRICE; 172.00 ♦ S4H (Depends on exchange rate) 


About a month after ray second order (the first 
bounced because of some problems with VISA), I 
received ray DK‘'Tronics "big* keyboard for ray 
TS/1000. 

The keyboard case is made of a soft black plastic 
and has 40 grey keys and an additional 12 red 
keypad keys. The feel of the keys is good and 
clear vinyl markers on each key contain the 
standard Sinclair codes, as used in the U.K. 
(e.g., NEWLINE for BfTER). Inside the case is DK^s 
"motherboard* which is simply an extension of the 
2X81 buss to the rear of the case, but which has 
an extra male connector sticking up. This leaves 
the newly exposed rear connector available for 
other devices. DK also provides enough room for a 
small internal power supply for graphics ROM 
assembly. The standard phone plug connectors are 
exposed through a slot in the back of the case. 

Assembling the DK^Tronics keyboard was easy for 
the most part. Standard installation requires 
only that the DK keyboard and 2X81 have the screws 
holding them together removed and the 2X81 P.C. 
board placed inside the keyboard case. The 2X 
board plugs in to the motherboard via the edge 
connector. Two specially prepared connectors then 
simply plug into the keyboard slots. There is one 
problem with the standard instalation however. The 
OK product is intended for use with a 

UHF modulator. These cone out of the case about 1 
1/2" further from the back than the USA's VHF 
output and and extra 1/2* hole has to be drilled 
in the case. This is not a problem, as the 
material is very soft and easier to work than 
wood. 

The workmanship on the board I received was 
not very good. I had to realign the motherboard 
and found some of the wooden mounting flocks 
somewhat off center, as well. Also, DK made no 
provision for the Ch2 -Ch3 switch in the bottom of 
the case. Finally, an obvious mold flaw mars the 
finish on top of my unit. 


DEALER INQUIRIES INVITED 






other shortcomings include the lack oi a space 
bar, the use oi a wooden bottom plate and the 
total lack ot sheilding (not required in the UK, 
Td guess). These shortcomings are oHset somemhat 
i)y the Tine “Teel" of the keyboard, the ease with 
which the plastic material can be worked, the 
reasonable price and the extra numeric keyboard. 
On balance, I would rate the DK's keyboard a 
reasonable value for the money, but recommend you 
be prepared to use simple hand tools (screwdriver, 
hand brace, pliers) to 'finish* your keyboard. I 
expect a warranty claim would be tough to follow 
up. Do ask for the Overseas price, not the U.K. 
domestic price. 


SOFTWARE REVIEW; REDALERT 
MANUFACTURER: SOFTSYNC, Inc. 


William Pierson 


REDALERT is one of the best arcade type games 
available for the Timex-Sinclair 1000. This 
game is written in machine code providing 
some very fast action graphics. The cassette 
comes in an attractively packaged box with 
excellent instructions, including some tips 
if loading problems are encountered. The 
game requires the 16K Rampack. Once loaded 
the game is self-starting. I recommend that 
you read the instructions prior to playing 
the game for the first time. The numeric 






PROGRAMMING YOUR TIMEX / SINCLAIR 1000 IN BASIC by 

Mario Eisenbacher. An easy-to-digest format leads you through 
hands-on examples of programs in eorly chapters, then helps 
you develop skills you need to grasp and execute more complex 
programs. At eoch new level of understanding you get a 
vocabulary with definitions; a short, fancy program to run, prac¬ 
tice programs, exercise problems with answers, examples of 
errors along wifh explanations of how to prevent and solve 
them, ond a summary of what you’ve learned. 

30 GAMES FOR THE TIMEX/SINCLAIR COMPUTER by Bill L. 
Behrendt. Develop computing and problem-solving skills with 
challenges in deep spoce; gomes that forecast the future, 
magic mazes ond treacherous trials; oncient and modern war 
gomes, cliff diving, a reel predafor/prey simulation, o chance 
to be an artist; ond more. These exciting, all-new games with 
graphics come complete with instructions for running and 
ploying. 

TIMEX/SINCUIR INTERFACING: TESTED PROJECTS FOR THE 
XZ80, 2X81, AND THE TIMEX/SINCLAIR 1000 by James M 
Downey and Don Rindsberg Now you con understand, design, 
ond go on to octuolly build useful input/output devices for your 
computer. This book presents o series of step-by-step instruc¬ 
tions for such projects os o relay controller, digital-to-anolog 
converter, joystick interface, printer interface, onalog-to-digital 
converter, ond dumb terminal configurotion. Supplies you with 
construction techniques, programming considerations, trouble¬ 
shooting plans, BASIC listings for all programs needed, print¬ 
outs for the progroms used, and chip data. 

~ =Prentlce-Hall =. = 


I RETURN TO: Prentice-Hall / P.O. Box 512, W. Nyack NY 10944 I 

■ Msir Timex / Sinclair 1000 In ■ 

BASIC (729871-4) @ $13.45 hardcover (reg. $17.95)._copy(s) of 30 * 

(918904-1) @ $7.45 hordcover I 

■ i -copy(s) of Timex / Sinclair Interfacing (921759-2) @ | 

_«13.45 hardcover (reg. $17 95) Poyment enclosed (publisher poys post- * 

■ oge, money-bock guorontee) Bill □ me Bill my □ Visa or □ Mastercard I 

I (New Jersey residents please odd applicable soles tax) ■ 

I*-----——Exp. __ I 

Isionoture __ ■ 

_ ---- -- ^- ■ 

■Nome (print) __ | 


-Zip—__ _ 

6P20005-A1(2) 














keys 6, 7, 9 and 0 provide the movement 
controls for the ship as well as the fire 
controls for missiles and bombs. 

The game starts with the ship appearing on 
the left hand side of the screen, the ground 
scrolling form right to left to give the 
illusion of movement. As you "fly" along 
fuel dumps (graphic H), enemy missiles 
(letter A), and enemy fighters ( ) appear as 
targets for your missiles and bombs. You can 
burst fire five missiles or drop three bombs 
at a time. Enemy fighters can also fire back 
at your ship. So be careful. 

You are allocated three ships and 1000 units 
of fuel. The game continues until all three 
of your ships are destroyed or you run out of 
fuel. There is no provision for getting 
extra ships or fuel. Once a ship is de- 
stroyed, there is a brief pause, then the 
game continues. 


Initial impressions of REDALERT are very 
good. There is none of the blinking effect 
noted in some of the previous ZX/Timex games. 
The small TS keyboard does require some 
getting used to, but after several games you 
can easily manuever your ship and zap the 
enemy targets. The game loaded the first 
time without difficulty. There is a pro¬ 
vision to save the game with variables to 
keep track of the highest score. 

Included in the instructions are some ad¬ 
dresses to change game val-ues; for example, 
the number of ships, fuel dumps or enemy 
fighters. Tliis information is useful for 
increasing the difficulty of the game. 

This has to be one of the best TS games I 
have seen on the market. The fast action 
graphics make the game interesting and 
exciting even after several hundred games. 
REDALERT is well worth the price of $15.95. 
I can highly recommend it to those who want a 
challenging game. 


0> n 



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26 










































There are two new advanced ccmputers on the 
market that may be of interest to Timex and 
Sinclair users. 

The Sincla ir QL ( Quantum lp;;p:> 

As reported last issue the QL is a new 
business and personal computer from Clive 
Sinclair and Sinclair Research, Ltd. The QL 
is already available in England, and 
Sinclair had hoped to be selling the 
computer to mail order customers in the U.S. 
by the third quarter of this year. However a 
recent hold~up in component delivery will 
probably delay LI.S. availabil ity until the 



640K). The main microprocessor is a 32-bit 
68008 chip containing SuperBASIC and QDOS. 
SuperBASIC is an enhanced BASIC featuring 
user-friendly commands and flexibility. (For 
the QL;. Sinclair has abandonned its one- 
touch keyword system). The operating system, 
QDOS,is multi-tasking and can maintain up to 
20 program "windows" simultaneousy. QDOS 
also can support a 256-user local area 
network. The display is 85 columns by 25 
rows (516x256 pixels, hi-Tes)or 40 columns 
by 25(lo-res). 


fourth quarter. The announced price is $499. Four sophisticated programs are provided 



The QL is said to be canparable to the Apple 
Mcintosh in every way except price - the Mac 
sells for about five times as much. The QL 
features a 65-key keyboard, two built-in 
microtape drives, 128K fWI (expandable to 


with the QL; Quill - a word processor; 
Abucus - a spread sheet; Archive - a data 
base; and Easel - a graphics package. (All 
programs can share data with each other.) 
Ports are provided for a modem, a printer, 
joysticks, a monitor, a TV. and ne 


The Memotech HTX-512 


DISPLAY; 256 X 192 resolution , 16 colors which 


For the last year and a half Memotech 
Corporation has developed and sold RAM paks, 
EPROMS, printer interfaces, and keyboards for 
Timex Sinclair Computers. With the announcement 
last year that Memotech was developing its oun 
microcomputer, many Timex users were naturally 
interested. The Memotech Krx-512 computer is now 
available. The advertisement appearing in several 
computer publications is very impressive. 64K R^ 
built-in, expandable to 512K (thus MTX 512), plus 
seperate 16K RAM for video output with a seperate 
processor. 


can all be used simultaneously, 32 sprites, and 
eight user-definable windows. 

INPUT/OUTPUT; Centronics parallel printer port, 
two standard joystick ports, cassette port (2400 
baud) separate TV and monitor ports, 4-channel 
hifi port, ROM cartridge port, plus a uncommitted 
parallel I/O port (all standard). 

LANGUAGE; MTX BASIC with abbreviated commands, MTX 
GRAPHICS, NODDY - an II - command language for 
children, and MTX ASSEMBLER (built into 24K ROM). 
PASCAL and FORTH availabe as add on ROMs. 

KEYBOARD; 81 keys with numeric keypads, 8 function 
keys, auto repeat. 





I 



t 

» 



JRC Software 
Software for Sinclair and 
Timex Sinclair Computers 
Call (812) 752-6071 or 752-5106 
John Richard Coffey 
28 P.O.Box 448 

Scottsburg, IN 47170 


ITEM; Software 4ron\ JRC, PO Box 448, Scottsburg, 
IN 47170. 

For the TS 2068 

-The Great Graphics Show; The examples above are 
just two ot the many graphics display that can be 
done with the 'Great Graphics Show.* 

-Three Games Package: Paint and draw with 
Colorsketch, using your joystick more than 12 
single keystroke commands. 'Timing the Trash 
Compactor* is a cleverly animated game tor 
children and adults. *0odge-em* is a clasic race 
game with a surprising twist, fast and tough. 
-HiRes Lander; The clasic space game with 
high-resolution realism and two difficulty levels. 
Requires skill and patience. 

-Oscilloscope; Real time three-dimensional rotaion 
with dozens of possible patterns. 

-Touch Type Learning Game; Introduces 197 symbols 
and tracks your progress. Educaional but fun 
game. 

-Easy Editor; Fastest and easiest text editor ever 
in BASIC. 

All six of these programs are available for $24.95 
on a high - quality TDK tape. Also available 
seperately for $9.95 each. 

For the TS 1000/1500 

-Super Tape; Include Super Function Plot, 4-2K 
action games. Touch Type Teacher, Extensions to 
BASIC, Upper/Lower case on printer. Hi-Res on 
printer, and many more programs, mostly in machine 
code, on TDK tape for $24.95. 

CURRY COMPUTER 

Software & Hardware 
T/S 1000 and T/S 1500 
T/S 2000 Series 
Write for FREE Catalog 
Over 60 Programs/Keyboards/Rampacks 
DEALER INQUIRIES WELCOME 
5344 W. Banff LnJGlendale, AZ S5306 
1-602-978-2902 


KELTINORS KISEP {l6K) 

A realistic adventure involving 
fighting,bribing,strategy and luck. 
Many rooms,levels,weapons,treasures 
and magic items.Dungeon and objects 
set up RANDOMLY.Packed with suprlseSk 
On cassette-$6;95.Free catalog with 
order.Send cheque or money order to: 
MILL RESEARCH 32749 Avalbn Gres. 
Abbotsford, B.C«,Canada V2T 3W9 











ITEM; 5 programs -for the TS 2060 -from Sottsync, 
HE. 4th Street, NY, KY 10016. 

“Gulpman: PacMan-Type game except Gulpman can 
shoot at his attacker. Joystick or keyboard 
control. 15 nazes and 9 speeds. (Ed. note: 1 
liked it). 

-Cyberzone; Space game. Voice-activated tiring 
(no joke!), joystick/keyboard control. Nice color 
and very fast. (Ed. note: Tra hooked). 

-Voice Chess; Several ditticulty levels. Computer 
talked to the player with mildly sarcastic 
vocabulary. Nice game. 

-Personal Accountant; General ledger, amortization 
program,address tile with 15-page booklet. 

-Zeus Assembler: Machine Code programing. 

All programs on cassette ($19.95, except 
Accountant, $24.95). These programs will be 
reviewed in upcoming issues. 


HEM; Apropos Technology announces three new 

program packages tor the TS-1000 and TS-1500 

DR. FLOYD; A psychoanalytic artiticial 
Intell Igence program which allows the player to 
carry on a "conversation" with the computer. Great 
tor showing others what a small computer can do. 

GfWPHlCS PAK 1; A collection ot tive programs 
which allow the user to draw pictures on his TV 
screen through keyborad control. All creations can 
be saved to tape and recalled. One program allows 
placement ot any character anywhere on the screen. 
WORDPLAY; A collection ot tive English language 
programs which teach the player important points 
ot grammer and literature in a tun and stimulating 
manner. 

All require 16K ot memory and sell tor $12.95 plus 
$2.00 S & H. 


Mutual Funds Investors 
Timex 1000 Users 

Two 16K programs to cover 
the mutual funds. 

1. Mutual Fund Minder 

• Keeps track ot stocks you own showing 
current value of investment, per cent gain 
or loss, and other data. 

• Compares your account to others you 
select. 

• Prints summary, details, and a graph, for 
quick analysis. 

2. Mutual Fund Master 

• Store entire mutual funds listing, up to 600 
stocks. 

• Select printout; choose minimum per cent 
gain for printing. 

• Automatically prints when screen is full, if 
desired. 

• Ideal for selecting funds for more frequent 
looks with Mutual Fund Minder. 

The two programs compliment each other, 
and most complete analysis is accomplished 
by using both. 

Programs are menu driven, and user friendly, 
with built in extras to facilitate use. Instructions 
with cassette. 

PRICE: $19.95 each, or both for $34.95 + $2 
shipping. California residents add 6V2% Sales 
Tax. 

Compare this low price to what you would pay 
to subcribe to an analysis service. 

For Free Literature 

STOCK MARKET SOFTWARE 
1556 Halford Ave. #236 
Santa Clara, Ca. 95051 


Partial Pascal 

Pascal is a computer programming! 
language, very popular on microcom-j 
puters, invented by Professor Niklaus' 
Wirth of the Swiss Institute of I 
Technology. Partial Pascal is a subsetj 
of Pascal for the ZX81, Timex Sinclair 
1000 and 1500. 

Partial Pascal includes IF, THEN,! 
ELSE, CASE, OF, OTHERWISE, 
WHILE, DO, REPEAT, UNTIL, 
FOR, TO, DOWNTO, BEGIN and! 
END for program control; read readln, 
write, writeln, reset, rewrite, eoln, eof, 
inkey and text for input and output; +, 

*, DlV, MOD, abs, chr, odd, ord, pred, 
succ and sqr for calculations; NOT, 
AND and OR for decisions; PRO¬ 
CEDURE, FUNCTION and FOR- 
WARD for subroutines; CONST, 
TYPE, VAR, ARRAY, Boolean, char 
and integer for data; copy, fast, slow, 
pause and halt for computer control; 
plot and point for graphics; and mem, 
mem2, memw, move and usr for 
machine language. 

Partial Pascal executes much faster 
than BASIC because, as a compiled 
language, it doesn’t have to search thru 
tables to find variables or search thru 
line numbers as BASIC does for each 
goto, gosub or next. Partial Pascal’s 
16-bit integer calculations are much 
faster than BASIC’s arithmetic. 

Please note our new address. Partial 
Pascal is supplied on cassette tape with 
instruction manual. 16K RAM required. 
$30 postpaid from 

Semper Software 
585 Glen Ellyn Place 
Glen Ellyn, Illinois 60137 


DATA ACOUiSITIOIM & T 
CONTROL SYSTEM FOR | 


THE ZXB1/TS1000/TS1S00 



* CENTRONICS PARALLEL PRINTER INTERFACE 
Supports LPRINT. LLIST, « COPY Keys 

* REAL TIME CLOCK CALENDAR CHIP 
Battery Backup DY/MO/YR HR/MN/SC 

* ANALOG TO DIGITAL CONVERTER 

8 Channel 8 Bit 0-5 Volt Inputs 
100 Microsecond Conversion Time 
» DIGITAL INPUTS - 8 TTL Compatible 
Monitor Switches, Contacts, etc 
» DIGITAL OUTPUTS - 8 TTL Compatible 
Control Relays, Motors, etc. 

* ADDITIONAL FEATURES: Bus connector for 
other accessories. Resident EPROM with 
Software for all on-board devices. 

User's Manual with Applications 

"REPORT GENERATOR" AST + manual $89.95 
Kit with parts 8 manual $69.95 

Bare Board, software 8 manual $32.95 
Add $3.00 for shipping USA 

Service Available for checkout/repair 

Dealer inquiries accepted 

Send check or moneyorder. We also 
accept MC/VISA or call for C.O.D. 
shipment via UPS to: 

ENER-Z COMPANY 

P.O. BOX 635 

fort WASHINGTON, pa 

BIB-TST-oaSA 1S03A 





The following is a list of good to 
excellent newsletters that we have seen from 
various Timex/Sinclair user groups. 

T.S.U.6. Newsletter (tlO per year-monthly) 
Triangle Sinclair User Group 
c/o Doug Dewey 

206 James St., Carrboro, NC 27510 

C.A.T.S. Newsletter($10 per year monthly) 
Capitol Area Timex Sinclair User Group 
P.O.Box 725, Bladenburg, MD 20710 

Keyboards ($15 per year-bimonthly) 

Timex and Sinclair Bay Area Microcomputers 
P.O.Box 644, Safety Harbor, FL 33572 
Editor; Mel Routt 

TimelineZ (fl5 per year-monthly) 

Bay Area T/S User Group 
P.O.Box 1312, Pacifica, CA 94044 
Coordinator: George Mockridge 

Boston Computer Society 
Sinclair Timex User Group 
Three Center Plaza, Boston, MA 02108 
Director: Sue Mahoney 


16K TS 1000/1500 ZX81 

- presenting - 

RANDOM SCRAMBLE 

A challenging educational word game 
for your entire family. Helps build todays 
necessary vocabulary and spelling skills. 

- FEATURES - 

1 to 4 Players - 1 to 15 Rounds - 
4Levelsof difficulty - Double option — 
Constant score display - Current/ 
Remaining round display- Unique end 
of game player recaps display all play, by 
round, for each played-2500 Word built 
in (bypassable) dictionary! - User friendly. 
Send $13.95 & $1.75 postage/handling. 
Visa/MC send number & expiration date. 
CT. residents please add $1.05 sales/tax. 

FUSION MICRO PRODUCTS 

PARK SQUARE STATION 
P.O. BOX 15388 A 
STAMFORD, CT. 06901 


CASSETTE TAPES-the highest quality tape is 
used to make these computer quality cassettes 
in a popular C-20 size, 10 minutes per side 
make these perfect for 16K programs. Each tape 
cofTies with two blank labels and a plastic 
case. Only $.80 each in quantities under 10. 
10 for $7.50, 25 for $18.00, 50 for $34.00, or 
100 for $63.00. On orders below $15.00 include 
$2.00 for shipping, on all others we pay 
shipping. Send check to; WMJ DATA SYSTEMS, 4 
Butterfly Drive, Hauppauge, NY 11788, We have 
other size tapes available, send size needed 
and we will quote price. 

CHECKREC—Introductory offer. Keep track of 
your checking account on a MC spreadsheet. 
Program will also reconcile your account 
account to your bank statement. TS1000/ZX81 
with 16K. Provides hard copy if printer is 
used. Cassette $10.00. WMJ DATA SYSTEMS, 4 
Butterfly Drive, Hauppauge, NY 11788. We have 
other software. 

RAPID FILE, 16K, Basic/MC, more features, 
$10.95. Rapid Finance, 16K, 500 entries, 
$10.95. 3D Graphics, 16K or TS2068, please 
specify, tape $8.50, listing $2.50, Russell 
Brewer, 26630 Mill Rd., Frazeysburg, OH 43822. 


Hum n-TS sinwii 

■UCKJACX (Th* gam« of 21) (16K) 

Enjoy this oxciting gamol Up to 6 ployorx may 
play. AH hands simuHanaously displayad. Las 
Vagas rulas apply, with compwtar holding all 
batsi Allows fitting pairs, doubling down ft 
insuranca. Graat for tasting your stratagy. 

NHeHif UMUEKI (Manu drivan) (16K) 
Providas quartariy graphic display of your bill 
status, with bills duo saarch 1^ dasirad data. 
Summarias of axpansas paid, avaragas. ft 
oxpansa as % of incoma. Printar option 
indudad. ' 

CUEIUI PUMEI (Manu drivan) (16K) 
Scratchpad calandar. Up to 200 parsonal 
avants may ba filad. Add or daiats anytima. 
FHos stay in ordar of data! 12 aoarch modos 
dteplay appointmants, auto mant.. Hot«ay 
Do's, jobs, ate. Also allows viawing dasirad 
waak, month, or yaar. 

$9.98 aach indudaa postaga (Ca. ras. add 
Salas Tax) 

A rsr hM trssim twd lUE -k 

!.■.$. HTEiraiKS 
In SMS 

iMCiHir. (s. IHN 


. 1 / THE 

iWi‘ WIZARD 

tr WORKS 

1(616)173-5164 
Tvnpfwimt.$ 7.50 

A Texi H«ndlin| Proffim 

STATISnai GRAPH UNftATOR.$7.50 

A Grtph Rroducinf Pro^f am 

MUS AMAim.. .$14.50 

A Saks Report Profrsm 

HOME luocn GRAPHER.$7.50 

A Home Bodtet Pro|ram 

UVESOrSHTRA.$$,50 

A Game at Skill and Faie lhrou|h the Mafic Cam 

HARRY HO A THE MSAPPURIHG MAMONDS.. $0.50 

An Interactive Adventure Game 

MIX aiCUUTOt.$7.50 

A Proframers AddrcM Cakulaior 

SYMKH TAiU CCNitATOI.$7.50 

An A&zmic Fik Utiliir 
(AM Proipvw UKJ 

* 9m man ktinmisM t f ttp'mm wttf hi 

ttmhrpiip—tnd n iWslA 51.54 f w W ntbisjhS Hi 
TIm Whanl Wslii 

_ lai 45, Wa»sryMa, M l 40450 

MNMMaMMsa«MMMnmsinmmNMtniMwa«6iMnKwn«(«6 


3 
















P.S. 

A few parting comments 


- If you like T-S Horizons, please let us know. We welcome all 
constructive criticism, because we do want to become the best Sinclair 
magazine you can buy. 

- If you like us, support our advertisers. And be sure to mention where 
you saw the ad. 




Most importantly, if you have any bad experiences with our advertisers 
- or any company dealing with T-S/ZX related items - please tell us. We 
iiot print ads from dishonest, unscrupulous companies, or from those 
who sell products that do not live up to the advertising. 


Thank you, 

Rick Duncan, Publisher 


CHRISTIAN SOFTWARE 

Bible Story Software 


for T/S 1000 

David & Goliath 12.95 

The Ark 12.95 

$1.50 shipping 7 handling 
others availame - send for free flyer 
Box 547, Bettsville, Ohio 44815 
1-419-986-5217 


5:ife 


& 



POWER SAVER 1000 & 2000 
BATTERY BACK-UP 

UNINTERRUPTABLE BATTERY BACK-UP FOR 
ZX80, 2X81, T/S1000, T/S1500, AND T/S2068 


ALLOWS HOURS OF PORTABLE. FULLY 
OPERATIONAL, COMPUTING. 


RECHARGEABLE BATTERIES INCLUDED 
IN CASE WITH LED TEST INDICATOR. 


RETAINS MEMORY WHEN AC FAILS. 


FULL 90 DAY WARRANTY! 


H & Z ELECTRONICS THE BATTERY BACK- UP SPECIALISTS" 

OFFER MANY FEATURES NOT FOUW IN “STMIL AR UNITS 

Power Saver 1000-2000 is the state of the art in solid state design, 
in which numerous production models have been desioned, built and tested. 

In respect we came up with a memory savino computer aid that allows fully 
operational computing when AC fails to operate the computer properly. 

The P/SIOOO is fully incased with the highest quality rechargeable 
batteries available to meet the demands of your computer. Once discharged 
the batteries can be charged in either one of two positions explained in 
further detai1: 

CHARGING : 

Due to the unique design of the P/S1000-P/S2000 it allows you the 
choice of a "Fast" or "Slow" (trickle) charge position. 

SLOH - With the P/SI000-P/S2000 in the slow position the user has 
full use of all of the computers functions, along with it 
capability of retaining memory when AC fails to run the 
computer properly. In this position the batteries are 
trickle charged as needed to keep them in peek operating 
conditions without affecting the operation of the computer 
in any way. 

TAGT - This position has been built in for those of you who may 
wish to make your computer portable. In the fast charge 
position it allows you to restore the necessary charge to 
the batteries overnight (approx. 6 to 10 hours from minimum 
operating point)*. However, in this position it is not 
possible to run the computer due to the fact that all of 
the supplies power is delivered into charging the batteries. 

‘(NOTE: Due to the self regulation of the P/SIOOO it is not possible 
to overcharge the batteries in either the fast or slow charge position) 


FULLY RECHARGES WITH COMPUTER'S * PLUG IN INSTALLATION, NO MODIFICA- 
POWER SUPPLY. CATION NEEDED. 

P/S 1000 

ZX80, ZX81, T/S1000, T/S1500 
$59.95-BLACK 

P/S 2000 
(T/S2068) 

$119.95-SILVER 


LED BATTERY TEST : 

The P/S1000-P/S2000 has a built in battery test feature that you will 
find quite unique and helpful. It is extremely easy to operate by depress- 
Ing the push botton switch on the P/S1000-P/S2000 labeled "Battery Test". 

It will indicate the batteries capabilities. If the LED lights brinhtly 
there is enough of a charge to operate the computer. The LEO will consis¬ 
tently dim with the capabilities of the batteries to run the computer 
properly. When the LED does not light, it simply means the batteries are 
undercharged and are not reliable to run the computer. 

WA RRANTY : 

The P/SI000-P/S2000 Is guaranteed to be free of defects due to workman' 
ship and components for 90 days from the date of shipment. If necessary, 
the P/S1000-P/S2000 may be shipped to us for repairs. If out of warranty - 
repairs will be made at a minimal cost. 


(PRICE INCLUDES SHIPPING AND HANDLING) 

Due to m 

anufacturi 

ng changes 

- charge ra 

ites I 

nay vary slightly 

(Wl RESIDENTS ADD 5% STATE SALES TAX) 

SPECIFICATIONS: 





SEND CHECK OR MONEY ORDER TO: 

T/SIOOO: 

APPROX. 3 

-1/2 Hours 

of Battery 

Li fe 

With T/S1016 



APPROX. 7 

Hours 

of Battery 

Life 

Without T/S1016 

H & Z ELECTRONICS 

T/S2000: 

APPROX. 7 

Hours 

of Battery 

Li fe 

With T/S2068 ' 

P.O.BOX 8761 








MADISON, Wl 53708 


The HUNTER Board 

Add Memory that won’t Forget! 

DESCRIBED IN JULY/AUGUST 1983 Badio EICOtrolliBS 


^ ADD YOUR OWN SYSTEM UTILITIES 











UP TO 8K NONVOLATILE RAM 


BUILD UP A LIBRARY OF MACHINE 
LANGUAGE SUBROUTINES 


USE HM6116LP CMOS RAM 
OR 2716/2732 EPROM 


COMPATIBLE WITH 
16K RAM PACKS 


$3295 


plus $1.95 shipping and handling 


What a super product!...conceived and executed very nicely...and with quality components. 

(SYNTAX QUARTERLY Winter 82) 

For versatility this is even better than an EPROM...ranks quite high on the list of “must-haves”... 

(SYNC Magazine Mar/Apr 83) 

Provides the user with instant software...an extremely versatile memory extension... 

(Z-WEST June 83) 


Complete kit with one 2K 6116LP-3.$32.95 

Additional three 6116LP-3.$25.00 

Bare pc board & manual.$13.05 

Female connector 23/46 gold bifurcated.$ 5.00 

Kit for EPROM use only.$22.95 

Assembled & tested with 2K..$47.95 

Assembled & tested with 8K.$65.95 

Shipping & handling per order.$ 1.95 


Send check or money order to the address below: 

HUNTER, 1630 FOREST HILLS DRIVE, OKEMOS, Ml 48864