offers you this remarkable new computer two waysG

Superboard II $279

For electronic buffs. Ful ly assembled and tested. Requi res + 5V at 3 Amps and a video monitor or TV ^{with RF} converter to be up and running.

Standard Features---,

• Uses the ultra powerful 6502 microprocessor

• 8K Microsoft BASIC-in-ROM

Full feature BASIC runs faster than cur rently available personal computers and all 8080-based business com­

puters.

• 4K static RAM on board expandable to 8K

• Full 53-key keyboard with upper/lower case and user programmability

• Kansas City standard audio cassette interface for high reliability

• Full mac h i n e code monitor and 1/0 utilities in ROM

• Di rect access video display has 1 K of dedicaled memory (besides 4K user memory). features upper case. lower case, g raphics and gaming characters for an effective screen resolution of up to 256 by 256 poi nts. Normal TV's with overscan display about 24 rows of 24 cha racters:

without overscan up to 30 X 30 characters.

Extras

• Available expander board featu res 24K static RAM (addi­

t ional). dual m i n i-floppy i nterface. port adapter for printer and modem and an OSI 48 line expansion interface.

• Assembler/editor and extended machine code monitor available.

I n terested in a bigger system? O h i o Scientific offers 1 5 other models o f m i c roco m p u t e r systems ran g i ng f ro m s i n g l e board u n i t s to 74 m i l l io n byte hard disk systems.

Circle 290 on inquiry card.

Challenger 1P $349

Fully packaged with power supply.

Just plug in a video monitor or TV through an RF converter to be up and running.

,...ORDER FOR M -_ _ _ _ _ - - - -^-- - - - -Order d i rect o r from your local O h i o Scient i f i c dealer.

D I ' m interested. Send me information on you r:

D Personal Computers [J Busi ness Systems D Send me a Superboard II $279 enclosed 0 Send me a Challenger 1 P $349 enclosed

D I nclude 4 more K of RAM (BK Total) $69 more enclosed Name

Address

City __________ State _______ Zip ___ _

Payment by SAC (VISA) __ Master Charge __ Money Order

Credit Card Account #

---Expi res ____ Interbank It( Master Charge)

Oh10 Res1dents add 4% Sales Ta x

TOTAL CHARGED OR ENCLOSED

All orders shipped insured UPS u n less otherwise requested. FOB Aurora. OH

L - -- -- - --- - - - - J

America's Largest Fu l l L i n e M icrocomputer Company 1333 S. Chill icothe Road • Aurora, Ohio 44202 (216) 562-3101

BYTE December 1978 41

WE'RE ALTOS COMPUTER SYSTEMS. Our SUN-SERIES ACSSOOO business/scientific computer creates a new standard in quality and reliability in high technology computers.

IDGH TECHNOLOGY The ACS8000 is a single board, BUILT-IN RELIABILITY The ACS8000 is a true single Z80® * disk-based computer. It utilizes the ultra-reliable board computer. This makes it inherently reliable and main-Shugart family of 8 inch, IBM compatible, disk drives. A tainable. The board and the two Shugart drives are easily ac-choice of drives is available : single or double density, single or cessible and can be removed in less than five minutes. All elec-double sided. Select the disk capacity you need, when you tronics are socketed for quick replacement. Altos pruvides need it : YzM , 1 M , 2M, or 4M bytes. The ACS8000 features complete diagnostic utility software for drives and memory.

the ultimate in high technology hardware : a fast 4 MHz Z80 CPU, 64 kilobytes of 1 6K dynamic RAM , 1 kilobyte of 2 708 EPROM , an AMD 95 1 1 floating point processor, a Western Digital floppy disk controller, a Z80 direct memory access, Z80 Parallel and Serial I/0 (two serial RS232 ports, I ^parallel port), and a Z80 CTC Programmable Counter/Timer (real time clock). In essence, the best in integrated circuit technology.

( ALtO)]

QUALITY SOFTWARE Unlimited versatility. The ACS 8000 supports the widely accepted CP/M® * * disk operating system and FOUR high level languages : BASIC, COBOL, PASCAL and FORTRAN I V . All available NOW.

PRICE $ 3 ,840. Standard ACS8000 system with 3 2 Kb RAM and Vz Mb disk. FPP, DMA and software optional. Dealer/OEM discounts available. Delivery : 3 weeks ARO .

*280 is a trademark of Zilog. Inc.

••CP/ M is a trademark of Digital Research, Inc.

Dealer/rep inquiries invited.

Circle 1 2 on i nquiry card.

COMPUTER SYSTEMS

The Pocket Calculator Game Book by Edwin Schlossberg and john Brockman William Morrow and Company Inc New York 7975

7 58 pages hardbound

$6.95

For many of us, the introduction to the microcomputer is the pocket calculator.

However, after we learn its functions, it often ends up in a drawer except for shop­

ping and checkbook balanci ng. It shouldn 't.

There are many ways to use your calcu lator for enjoyment.

I l ike the competitive aspect of th is computer business, either against the mach ine or another player. Therefore I like offering a range for all ages. Several have two versions, a simple method and complex one for those of you with the costl ier mach ines.

"1 001 " is one of several games whose object is to reach a particular number using the finance. The student of political science will find meat in "Cold War" or " Detente. "

There are puzzles, mazes and much more. As a puzzle freak, I found my favorite among these pages. By multiplying and d ividing in a jud icious manner, one can ded uce the proper path to follow. A game is a valuable test to see whether your calcu Ia tor can handle certain operations. This would be an excel lent way to check out a calcu lator that you are considering buying.

Throughout the book, the authors offer samples of how each game shou ld be played, as wel l as winning strategy. I n the intro­

duction are explanations for those concepts which may be new to some readers, such as

Many games are only the point of depar­

ture for exploration by the hobbyist. One could extend many of these to any home built computer. A lot of thought went into th is book and it shows. I th ink the book does the best possible th ing for a hobby: it makes the hobby more fu n.

Noel K Julkowski Naval Environmental Prediction Research Facility Monterey CA 93940•

U.S. �OITAL S I: N V I C I:

STATEMENT OF OWNERSHIP. MANAGEMENT AND CIRCULATION (R�quirtd by )9 U.S. C. 168.5)

aAMPLKa, CONPLINaNTARY, AND OTH.ft ....^{.. co..•a}

a, TOTAL. DlaTRIIaU'tiON ,..,.. O(C .... ⁰⁾ 1 2 8 , 3 76 1 36 , 4 1 2

(See lnotructiOIU on reveno)

December 1978 ©BYTE Publications Inc 43

COSMAC V I P, the com pletely assem bled , ready-to-operate RCA Video I nterface Processor, opens u p a

whole new world of com p uter excitement. New challenges i n g raph i cs , games and control functions. Yet it's j ust $249.00.

Easy to buy. And easy to prog ram, thanks to its u n i q ue, easy-to-use i nterpretive lang uage.

You get a complete how-to book i n c l ud i ng prog rams for 20 games: fu n , chal len g i n g , and

"ready to l oad and record on you r cassette.