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NUMBER 7
$2.25
THE MOSAIC RAM SYSTEMS FOR ATARI*
CLEARLY THE BEST
THE
SCREEN
CLARITY
TEST
YOU CAN SEE THE MOSAIC DIFFERENCE
\
\
WHAT THE EXPERTS HAD TO SAY
ANAL.O.G. 400/800 MAGAZINE said in a 32K RAM
board comparison test: "The Mosaic 32K RAM showed no
sign of interference and gave the best screen clarity" and
"Mosaic uses what we
feel
are the highest quality
components which may
improve
reliability".
INTERFACE AGE said after replacing the Atari memory
board with a Mosaic 32K RAM: "Once in place there is no
noticeable change in screen clarity" and "in
view
of its
excellent performance it should be a serious choice for those
Atari owners intending to expand their memory"
Each Mosaic RAM board
gives
you more than just the best
screen clarity but also the best in reliability flexibility and
compatibility The Mosaic RAM systems offer you the best in
every way - these features prove it.
• Works in both the Atari 400*& BOO*computers.
•
•
•
•
•
•
•
•
•
4 year guarantee.
Complete instructions.
Test cycled 24 hours for reliability.
Gold edge connectors for better reliability.
Quick no-solder installation.
Full flexible memory configuration.
Can be used with 8K, 16K and future products.
Designed to take advantage of Atari BOO's superior bus structure.
Designed for inter-board communication in Atari 800.
THE MOSAIC RAM SYSTEMS FOR
THE SERIOUSATARI OWNER.
THE MOSAIC 32K RAM
For the serious Atari owner. This is the 32K RAM board
you've been hearing about.
It
has every feature you
could want from a RAM board and more features than
any other board offers. Each Mosaic 32K RAM comes with
complete instructions so in a few minutes you will have
expanded your Atari 800 to 48K RAM. The
Mosaic
32K
RAM works as well in the Atari 400, but we suggest the
NEW Mosaic Expander.
THE MOSAIC EXPANDER
This is the most effective way you can expand to 32K
RAM for your Atari 400 computer. And at almost the 16K
price! The revolutionary Mosaic Expander is a memory
board with 16K RAM in place and open slots to add 16K
more from the Atari 16K board that comes with your Atari
400. Each board comes with complete instructions so in a
few minutes you will have expanded to 32K RAM.
"'Trademark of Atari, Inc.
• Allows Atari
BOO
to have 2 slots open for future expansion.
• Always the best components used for superior screen clarity and
reliability.
• Low power design for safety and reliability.
• Available companion board (55) to allow running The Mosaic RAM
systems independent of other boards.
e~It\OSAIC
ELECTRONICS
P.O. Box/08 Oregon
City,
Oregon 97045
503/655-9574, Toll Free 1-800-547-2807
lead
to
the undertl'Ound.
Ma~
are the doors that
The top prose adYenture bestsellers, ZORK I and ZOO D.
Nowa"ailable for
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few are they who come back alive.
Your S6reatest challenS6es lie ahead -and below.
ZORK
1:
The Great UnderS6round Empire. and
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Those who live to tell the tale of ZORK's
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DEADLINETM -await you. at fine computer
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Open your door to the underfround-
here's $2 for openers!
To Qet your $2 ZORK rebate by mail. just send Infocom
this coupon with your completed warranty card and
sales slip from ZORK in their oriQinal form. No repro-
ductions will be accepted. Limit
I
rebate for household.
address or orQanization. Offer Qood only in U.s.A. Void
where prohibited. taxed or otherwise restricted. Rebate
request must be postmarRed before midniQht 7/31/82.
Infocom is not responsible for lost. late or misdirected
mail. Allow 4 to 6 weeRs for delivery.
Apple is a rellistered
trademar~of
Appie Computer. Inc. AlARI is a rellistered
lrademar~of
Atari.lnc. CP/M is a rellislered
trademar~
of Dillita I Research.
Inc. PDP is a
Irademar~
of Dillita I Equipment Corporation.
55 Wheeler Street. CambridQe. MA 02138
InFocom
Infocom, 55 Wheeler Sf., Cambrid\1e, MA
~2138
OFFER EXPIRES JULY 31, 1982
BI
Turn To
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With COMPUTEI Publications
The Beginner's Guide To Buying
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A Novice's handbook of useful. helpful in-
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of evaluating and selecting a personal
computer, Written in plain English
for the interested beginner,
Complete with personal com-
puter specification charts and
buyer's guide. Applicable to
home, educational. and
small business buyers, ISBN
0-942386-03-5.
Paperback, $3,95,
Inside Atari DOS
From the authors of the Atari Disk
Operating System, an exciting step-by-step
guide to the DOS software. Complete
with listings of commented source code
and detailed explanations of each
module of code. Author: Bill
Wilkinson, Optimized Systems Soft-
ware, Inc, Spiral bound for ease
of access to listings. For Inter-
mediate to Advanced Atar;
Users, ISBN 0-942386-02-7,
Paperback, $19,95
COMPUTE!'s
First Book Of
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192 pages of useful. in-
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COMPUTE!
magazine issues
now out of print. Includes
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mation including Memory Map,
Contents include such articles and
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COMPUTE!'s
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With over 200 pages of un-
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specially selected by the
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COMPUTE!
Maga-
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ISBN 0-942386-06-X,
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COMPUTE! Books
invites dealer inquiries, Call the Toll
Free Number below for Dealer Information.
COMPUTE! Magazine
A Monthly encyclopedia of informative applications articles and programs,
COMPUTE!
features articles, programs,
and columns covering the spectrum of home and educational computing. Monthly reviews, complete BASIC
and machine language listings of games, utilities, applications such as "Programming Your Home Insurance
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Written for children and parents, educators, novices to advanced programmers, Principal editorial coverage is
Atari, Apple, Commodore PET/CBM, and VIC-20. Editorial coverage is expanding to include TI-99/4A Sinclair ZX-81,
and Radio Shack Color Computer. Latest issue: 224 pages.
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ATAAI
is a
registered trademark of AtarL Inc. PET and CBM ore trademarks of Commodore Business Machines. Inc.
NOTE: ATARI® is a registered trademark of ATARI, INC., a Warner Communications Company
and all references to ATARI® should be so noted.
1982
NUMBER 7
A.N.A.L.O.G.
STAFF
Editors/Publishers
MICHAEL DES CHENES
LEE H. PAPPAS
Managing Editor
JON A. BELL
Contributing Editors
TONY MESSINA
DR. GARY ROSE
MARCIA ROSE
Editorial Assistant
AMY LYNDE
Asst. Art Director
BOB DESI
Technical Division
CHARLES BACHAND
TOM HUDSON
CRAIG PATCHETT
Software Marketing
SHIMANE ODERKIRK
Software Distribution
PATRICK]. KELLEY
Advertising Manager
MICHAEL DES CHENES
Typography
HENDRICKX
&
LARRIVEE
CO.,
Inc.
Production/Distribution
LORELL PRESS, INC.
Contributors
Marc Benioff
Art
V.
Cestaro III
Mark Chasin
Dave Hallowell
Michael A. Ivins
Aly Kahn
Peggy Knoble
Winston Lawrence
Brian Moriarty
Mike Sueirro
Raymond
T.
Tillman
Joseph
T.
Trem
A.N.A.L.O.G.
Magazine Corp. is in no way
affiliated with ATARI.
ATARI is a trademark of
ATARI, Inc.
FEATURES/ARTICLES
ATAR/:2019
Restore Your Mental Health
The Program Doctors at C.E.S
Non-Tutorial VI
Stereo Graphics Tutorial
Make Your Own 3-D Glasses
BASIC Crossword Puzzle
Patrick J. Kelley
Mike Sueirro
Marcia and Gary Rose
Charles Bachand
Brian Moriarty
Brian Moriarty
Peggy Knoble
12
19
45
60
68
70
71
REVIEWS/PROFILES
K-Dos
Jerry White
Raster Blaster
The Program Doctors
The Percom Double-Density Disk Drive .. Winston Lawrence
APX Stereo Graphics Package
Brian Moriarty
10
22
57
66
PROGRAM LISTINGS
BUNCRUSH
Dino Battle
Faster Character Dumps
Sound lab
Budget Worksheet
Multiprocessing
ATARI BASIC/
Meets Complex Data Structures
Triple Threat Dice
Tony Messina
Art V. Cestaro
Joseph
T.
Trem
Dave Hallow811
Aly Kahn
Mark Chasin
Raymond
T.
Tillman
.- .. Michael
A.
Ivins
13
26
32
34
39
41
49
63
COLUMNS
Editorial
Lee Pappas
Reader Comment
~.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benioff at Large
Marc Benioff
New Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .
Index to Advertisers. . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .
Lee Pappas
VCS Update
4
5
9
11
53
54
~
~
"A.N.A.L.O.G. COMPUTING is published bi-monthly for $12 per year by A.N.A.L.O.G.
Magazine Corp., 565 Main Street, Cherry Valley, MA 01603. Second-class postage pending
at Worcester, MA and additional mailing offices. POSTMASTER: Send address changes
to
A.N.A.L.O.G. COMPUTING, P.O. Box 615, Holmes, PA 19043." Tel. (617) 892-3488.
No portion of this magazine may be reproduced in any form without written permission of the
publisher. Program listings should be provided in printed form. Articles should be furnished
as typed copy in upper and lower case with double spacing. By submitting articles
to
A.N.A.L.O.G. Computing, authors acknowledge that such materials, upon acceptance for
publication, become the exclusive property of A.N.A. L.O.G. If not accepted for publication,
the articles and/or programs will remain the property of the author. If submissions are
to
be
returned, please supply seft addressed stamped envelope.
Contents copyright
©
1982 A.N.A.L.O.G. Magazine Corp.

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