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Glendale Atari Faire, Friday the 16th, Saturday the 17th 


HyperCard & Hyper clone on the ST 

LDW Power Spreadsheet Sp ecial cc^-Act Now and SAVE!!!! 

SpartaDOS X Cartridge Update- Check It Out 

XE to ST Interface that works! (thanks to F EAN.) 

Mike Lesher’s Multisync Connections-1 monitor does it all 





































































































TH€ SAN DieQO ATARI COMPUTGR 

SNTHUSIASTS 


(S.D.A.C.E.) is an independent, non-profit organization and users group with no connection to Atari Corporation. Membership 
mciudes access to the program libraries, subscription to The I/O Connector, free want ads, and access to other club activities. 
Pfermission to reprint articles from this newsletter in non-commercial form is granted provided orginal credit is given 

Commercial Advertising-Monthly Rates 

$35-Full $30-Back $20-Half S 10-Quarter $5-Biisiness Card 

(Prepay for 5 months, get the 6th Free!) 


S.D.A.C.E. Officers 




Newsletter Submissions: 

Send all text and graphics to the club P.O. Box or Sig 1 of 
the S.D.A.C.E. BBS by the 30th of each month for 
inclusion the next month. Text shouid be ASCII or Word 
Writer; Graphics should be high-res DEGAS or .IMG. 


Maying Address: 

S.,D.A.C.E. 

PO. BOX 203076 
San Diego, CA 92120. 


Yes;, sign me up for one year's membership in S.D.A.C.E. This entitles me to receive the monthly club newsletter, use 
the dub libraries, and use of the dub B.B.S. Membership dues are $18 per year. Mail this form and your check to 
SaA.C.E., P.O. 203076, San Diego, CA 92120 

htene_ Computer____ 

Adufress__ 

Phone_ 

Camments_______ 









































The Pursuit of Happiness by Tom Briant 


HyperCard may be 10% Card and 90% 
Hype: but it separated the star-bellied 
MacSneeches from us plain bellied ST 
Sneeches. Well, no more!!! Running a 
beta version of Spectre 128, Mark Booth 
impressed the neighboring Mac owners at 
the San Diego Computer Society Fair by 
running HyperCard, MacPaint II, and 
WordPerfect for the Mac on his 1040. 
Saundra Russ ran her perennially popular 
3-D demos with the liquid crystal shutter 
glasses. Dick Hiatt represented the 8-bit 
group with several games that people sat 
down and played. Nothng like hands-on 
experience with an Atari to blow away 
past misconceptions. Mike Street and 
Nancy Rivers worked at the registration 
booth; and finally. Gloria Rickey donated 
blood at the San Diego Blood Bank blood 
drive. 

Next on the agenda comes the Southern 
Caliornia Atari Computer Faire Version 
3.0, held at the Glendale Civic Audi¬ 
torium. 1401 North Verdugo Road, Glen¬ 
dale , CA. on Friday, September 16, from 
12 noon to 6 p.m., and Saturday, Septem¬ 
ber 17, from 10 a.m. to 5 p.m. Bring your 
membership card to receive a discount, or 
arrange now to relieve your editor at door 
security for a couple of hours and get in 
free! While you check for reciepts, FIl try 
to sell some advertising space. 

I have two tips for you if you go. 1. GET 
A MAP!!! I suggest a Thomas Brothers or 
an Auto Club map: but get one or you'll 
end up lost and spaced on those freeways. 

2. Bring a cooler to insulate disks from the 
heat if you plan to buy or bring software. 
Glendale was hot last year: why take 
chances? 

You’ll recall last month I ran the special 
WordPerfect offer, expiring September 
15th. Logical Design Works now offers 
you the logical supplement, the LDW 
Power Spreadsheet. LDW offers user 
groups a discount. ST-Informer reviewed 
it,, found it powerful, fairly bug-free for 
an early release, and needing I megabyte 
to start. 520 owners, upgrade or pass. 


I hope to see and measure a head to head 
competiton between LDW Power and 
Microsoft Excel, running in Mac mode. 
Many reviewers consider Excel, not 1-2-3, 
the spreadsheet standard for power and 
convenience. 

I mentioned HyperCard running under Mac 
mode: now how about Hyperclone? 
Beerysbit, A.S.C, Inc has Omnicard, a 
program resembling HyperCard, under 
development. It uses the deck of cards 
metaphor, and it also takes at least 2 
megs of memory for best results. 

Fd swear I just heard 3 people in El Cajon 
shout, " Who's gonna be at Glendaie?r 
Here's the latest list from ACE-NET: 
Atari, .ANALOG, Astra Systems, Best 
Electronics. Bill Skurski Enterprises, Bro- 
derbund, BRE Company, Computer Shop, 
ComSoft. Data Pacific, Federated, Future- 
Systems (Indus), Gadgets by Small, ICD/ 
OSS, Index Legalis Publishing, Logical 
Choice. Megama.x, Vlerriil Ward and Asso¬ 
ciates, Michtron, Mid-Cities, MIDI Mouse, 
.Migraph, Neocept, Practical Solutions, 
QMI, Regent Software, Reset Magazine, 
Seymour -Radi.x, Softlogik, Sonus Cor¬ 
poration. Slrlnformer. ST-Xpress. Supra. 
Total Control Systems. WordPerfect, and 
Wuzteck. I hope those 3 people in El 
Cajon hear this: S.D.A.C.E. still needs 
volunteers for the booth. Call Mike 
Street at 449-35 15, 

Atari has a laptop ST under development 
in England, supposedly with 1 meg's 
memory and a trackball instead of a 
mouse.. Across the Channel, two French 
companies plan to sell ST clones here, 
pending F.C.C. approval. Thanks to the 
San Leandro Computer Club for those 2 
stories and for Omnicard, too.. 

Now, for you 8-bit owners in S.D.A.C.E. I 
need some articles: at least some input as 
to which topics you want to read about. 
Do you want hardware articles, software 
articles, game reviews....If you don't in¬ 
form me (who began with an ST in '86, 
not a 400 in '81), then you'll get 
shortchanged. So get up, stand up, stand 
iin for vour rights. GET I iP. ST A NO IIP 


DON’T GIVE UP THE 8-BIT FIGHT! 
To begin with, you need to pick an 
Interim 8-bit Vhce-President. Ron .Vliller 
will return to school this fall. 

I want to thank Steve Lawrence and 
Warner Engineering for their new ads. 
Hopefully The I/O Connector can pay for 
the printing costs through advertising bv 
the time a new editor takes over. Just 
how fancy a newsletter you get, however, 
depends on your input. (And I don't read 
minds, just BBS’s) 

Finally, .Atari has begun releasing ST ads 
from Its captive breeding program. I saw 
them in professional musician magazines 
and in Personal Publishing. Personal Pub¬ 
lishing has also begun a 3-part series on 
-Atari and .Amiga Desktop Publishing 
softvvare, favorably comparing Timeworks 
and Publishing Partner to Ventura and 
PageMaker, in Part 1. 


Atari BBS List 

SDACE-BBS XE/ST 

2S4-3821 

COMPUTER PLUS XE/ST 

691-7862 

COMPUTER OUTLET ST 

282-6815 

COMPUTER BLVD ST 670 

-1095 (NEW!) 

SMART 520 ST ST 

480-9686 

SMART 520 ST ST 

726-4419 

THE LORD'S HOUSE XE 

579-7354 

SHERWOOD FOREST XE 

273-5603 

COMPUTOREDGE ST 

573-1675 

Updates and additions weicome! 





















SpartaDOS X Update Courtesy ICD and Huntsville AcU.G. 


This IS a report of the progress of the 
much anticipated SpartaDOS X. 

As of 8/11/88, SpartaDOS X (SDX) is 
99% completed. Over the next few days, 
we will be finishing up the new MENU 
^ and tying up a few loose ends. We still 
have much work to complete on the 
manual, but we expect to be shipping in 
September. (Glendale looking better now, 
8-bitters?“Ed.) Outside beta testers have 
been working with SDX for almost 1 
month and it has been throughly tested in 
house much longer than that. 

SDX includes 64K of the tightest machine 
code ever written. This is ail in our 
special X cartridge whcih allows you to 
plug a language cartridge into the top. 
SDX has complete over this cartridge 
allowing it to turn it on and off as desired. 

SDX offers the most free memory of any 
available DOSI APresently MEMLO can 
be as low as $0E22 with no handlers 


installed in an extended memory machine 
like the 130XE 64 K machines have 
MEMLO at $1201. Of course, handlers 
push MEMLO up; but MEMLO should 
still be lower than SpartaDOS 2.3! 

High speed data transfer is standard on 
stock Indus GT drives. Atari XF551 
drives, US Doubler enhanced 1050 drives, 
and Happy 1050 drives. All densities are 
supportted (single, dual and double), sin¬ 
gle and double sided drives from 40 to 80 
tracks, 3.5^ 5«25^ and 8**. 

Hard drives on our Multi I/O are handled 
with ease. The files per directory limit 
has been incresed to 1424 files. Support 
has been added for hidden files along with 
an archive bit for backup. 

SpartaDOS X now also supports the old 
800 computer! An Axlon compatible 
RAM upgrade is required for it to be 
useful but SDX will actually work in a 
48K with BASIC and other 


relocatable languages. With an Axlon 
type RAM board, MEMLO is below 
$1000. A 48K stock machine will have a 
MEMLO just above $3000. 

SDX batch files now support parameter 
passing. 16 I/O channels are now 
included! 9 drive support allows D9* as a 
RAMDISK. Up to 1 meg RAMDISKS are 
supported if they conform to ’standard® 
banking methods. 

ICD has developed ARC as part of SDX. 
SDX-ARC is very close to IBM ARC 
v5.22. SDX-ARC uses many cartridge 
routines for exceptional speed and will 
also de-ALF ALFCRUNCH’D files. 

Future options for SDX include a Develo¬ 
per’s Tool Kit, Database program, and an 
XEP80 handler if ICD receives enough 
demand. 

ICD, Inc. 

1220 Rock Street 
Rockford, IL 61101 
Attn: SDX 
1-815-968-2228 


SSL ENTERPRIZES 
400/800 


16K MEMORY BOARD 

S 3.00 

0 S BOARD 


S.00 

CPU BOARD 

<OLD > 

8 OO 


<NEW> 

10.00 


1 C s 


BlO-'lOSO P1A, BOO-^XLy'XE P1A. 
Pok«y. GTIA. 6307, 810 OS 

« S.OO 

800 ANTIC 

5.00 

XL-^E ANTIC ,1020 C S 

10.00 

HISC 


130 XE k«yb««rd mylaf* 

« 20.00 

600XL 64K upsrad* 

29.00 

800XL. 2S6K PCS no ICs 

1S.00 


ATARI 8-BIT PARTS 
810 


SIDE BOARD 

S 15.00 

DATA SEPARATOR 

3.00 

SIDE D S 

20.00 

ANALOG BOARD 

8.00 

REAR BOARD 

3.00 

SET OF ALL 4 

32.00 


STEVE LAWRENCE 
745-2044 



FS-AJSr Featvire Aarticle - 8-Bil: <Sc S*T 


RS232C to TTL 
TRANSLATOR CIRCUIT 

Hert it U, ths RS232 interdict that I proxnbad a couple 
of club membera oevenU montha aaol circuit io figure 
C ia all it takea. The MAX232 chip ia extremely eaay to 
implement becauae it requiraa only a ain^e volt supply 
for complete operation. The chip ia arailable at Jameoo 
Slectronica (Ph# (415) 592-3097) for approximately S5.00, 
but they do ha to a $20.00 minimnm-order policy so you 
micht pick up some other goodiea when you go to oraer. 
You can also get data aheete for any derice they sell (I 
think!) (or about 50 eenta. 



Ibeeamo inmlved with thia BS2S2 interikce staff when 
a couple of cinb members ceiled caaoemin< piublesBa they 
had with the two Null-Modem dreoica that woVe publiahad 
fas the PSAN Newsletter within aboot the last year or f o, .J 
Theae articlea showed how to connect the 8-bit Atari 
joyport to tha 3T*a RS232 port (Tlctire D) to enablo Olo 
tranafera between the two computere uaissg some kind of 
terminal software with which I here absolutely ao 
•xperience. The leUer of the two articlea looked Uke a 
copy of the QiigiBei (hut by a different anthor) and if so, 
bed a mistake ia the wire conaectioaa. When I say that 
the circnsta ia qnestioa were inadequately designed, I (kmt 
meea to offend or be-little the authors of theae articlea. I 
^racuaily thi-sis tho Atari community owes s great deai of 
^snks to them since they both contribute to several 
Newsletters on a regular basis. However, thia case is a 


matter of life and Death* to the 8-bit Atari’s PIA chip. 
Heck, what's life without a little dramaf? 

The problem, with respect to the circuit ia Figure D, ia 
that RS232 signal levels are simply inoompetible with 
iomc ICs. RS232 signal levels may range hues >/ - 3 to 25 
Tolta and theae signs! levels must be limited or eismped ts 
voltage levels within the apedfiad input voltage renge of the 
particular TTL logic family concerned. For moat ICa the 
Limits are tenths of volts above Vee and below ^uuad. 
There are a few spedally designed chips that allow yon to 
break the mies, however, your PIA chip ia not ona of thni 
Intemaily, TTL logic ehipa have protection diodea and 
isolation layers, whi^ whm fiarward biased, eanao several 
internal circuit alementa to be short-circuited thus 
destroying the integrity of the dreuit. Some logic fiuailiso 
have a paraaitie-latch strnctnrt whidi, when aettvatsd br 
exeaaaive input voltagea, attempts to short Vee to (kouno 
(Got some weenies and a stick ... 17). The amonat of 
damage done to any particular IC will depend on the 
characteristics of the lo^ family, the actual physical layout 
of the internal components and subatrataa, and the 
magnitnde of the over/uader voltage and current ia 
violation of tha input limits. Similarly, IC outputs an 
susceptibie to tha same damage and for the same reaaoiia. 

T he ci renit ia Ffgnrt D is iaepproprists on 3 counts. 
FIrat, TIL outputs sh^d not be umd to drive IS252 i n p u t s 
directly; second, the RS232 to TTL connection dooaa't 
soHlcieatly limit aegadvo voltage inputs (standard signal 
diodes forward volta^ rating is too mgh OSS iNSTll'sk 
third, ths positive overvoltage is not eiampod or Umitod 
axtsmailv. Ths intsmsis of ths IC will dstsrmmo tho > 
damp voltage and tha axtaraal reaiator will only provide 
current limiting, which ia pnbably what saved your PIA. 
Now obviously thia simple circuit wurted far some people, 
right? Otherwise, it wouldn't have appeared ia onr 
Newalettersl Well, fortnaately, ICa don't ^waya go 
immediataly. Some are very dnable and under-rated and 
will last quits a while before degrading to tha point of 
per m a nen t fiaiinre. If von have bvuilt ana used tha aimpla 
cirenit in Figure 0 and intend ta coatiana avrapping fllaa 
be t w o aa oompotera, tfami now ia tha to bi^ am Active 
Nnil-Modam cirenit ia Flgore C. TLa^a right... *If it 
works, fix iti* Think of it as an inexpenaivo inanraaca 
policy! Believe me, if BS-232 latarikce mannihctiirera oould 
get away with oaiag tha cirenit ia Plgnra 0 they would, 
aimpiy because it's ao much rhsep sr to manu^Ktoce. 


r-iJT /vw 

Atinu Jtr 
aauae - -sew 
















• 







Figare D. 

MULL-MODEM CIRCUIT 








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• Public Domain Library " 

• Try before you buy software policy 

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• No comtssioned salesman 

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• Books and Magazines 

• Mac Sac and PC-Ditto support, too! 


• Warner Engineering—3545 Midway Drive, Suite 'C, San Diego, California 92075 Ph, (619)-224-5090 




SAN DIEGO ATARI COMPUTER ENTHLWAST^^I 
P.O. BOX 203076 
SAN DIEGO, CA.92120 




THE October 8-BlT meeting will be held on October !3th at the Rec Center. 10540 
Camimto Baywood, in .Miia Mesa at 7:00 pm..The ST beginners/hands-on workshop will 

^ Vu (Across from Folsom's Racquetball Court) October 6th at 

b.J0 p.m. The regular ST meeting occurs on October 17th at the North Park Rec Center. 
Social Room facility, at 6:30 p..m. 


I ! < 11