Apple III Review

120 Pages·2013·9.7 MB·English

for Electronics & Computing Enthusiasts
Dolby C
evolutio
oj
Apple III Review
Division
Computer
Exceitronix prices!
at unneatable
Computers
DISK DRIVE II W/DOS 3.3
$795
DISK DRIVE II
$739
Also check out our
Multiflex drives
We provide our own
--E-=-ESBORNE
120 day warranty
New Multiflex Products
TM
The Osbourne 1 computer is one of the most exciting developments in the field of
small systems in the recent times. Its low prices, combined with its small size and
for the AppleTM large features make it in high demand all over the world. The hardware features in-
clude:' a Z80A CPU with 64K RAM dual floppy disk drives with 90K storage 5"
CRT RS232 interface IEEE 488 interface ' business keyboard. The software in-
Special Limited Time Offer cluded is: CP/M operating system WORDSTAR word processor (clw
MAILMERGE) SUPERCALC spreadsheet CBASIC MBASIC. And all this for the
16K RAM CARD $75
$2495.
Allows you to expand your 48K amazingly low price of just special, and this month only, we
Apple to 64K. throw in a 12" Zenith green screen monitor at no extra cost. DON'T MISS OUT
ON THIS OFFER.
ssembled & Tested with 90 Monitors
day guarantee
Zenith Monitors complete with housing
Multiflex Video Card ONLY
and power supply ready -to -use with any
(80 do 4) $169 composite video signal 12" green $ 165
phosphorus screen switch selectable for
Based on 6845
40 or 80 characters. 90 day warranty;
Assembled & Tested with 90 quantity discounts available.
day guarantee AMDEK
Multiflex Wire -Wrap card for Apple $17.95 COLOUR I MONITOR
Multiflex Disk Drives
ONLY
for your AppIeTM 13" Colour Monitor 90 day $569
warranty.
SA400L Disk Drive attractively
packaged, ready to plug into an Ap-
ple Drive Controller Card (Compatible
Multiflex Speech Board Kit
to Apple Drive). This month only
Controller, $549 with 32 useful words
SA400L Packaged with
DOS and Book. Special Special $149
Note: the above Specials only good for month of October. Read about on page 23 in our catalogue.
Apple is a registered trade mark of Apple Computers Inc.
APPLE HARDWARE
Multiflex Z80 Card
for the Apple ORANGE 16K MEMORY M.C. CPS MULTIFUNCTION 339.00
EXPANSION $ 169.00 C.C.S. CLOCK/CALENDAR
$150.00 ORANGE KEYBOARD ENCODER CARD 169.00
115.00 VIDEX VIDEOTERM 445.00
Software at extra cost ORANGE ROMFONT CHIPS 35.00 VIDEX SWITCHPLATE 25.00
APPLE PARALLEL 239.00 VIDEX SOFTSWITCH 45.00
APPLE SERIAL 239.00 VIDEX ENHANCER II 195.00
Multiflex EPROM Programmer APPLE CENTRONICS 289.00 HAYES MICROMODEM II 499.00
APPLE IEEE -488 619.00 HAYES SMARTMODEM 385.00
Programs 2716, f2o7r 3th2e, 2A7p6pl4e .$150 AAWAPPPI PPPPLLLAEEES CPCLAAROLNOMGTMOUUTANYGIPCEI ANSTGYIOSTNESM 26843995...000000 MMMNIILOCCRVRR ASOOTUSSIPOOO'NRFF TT'MA 1ZPO68PDK0L ESIRI OACMFATTCC AIAIRRDD 25445695995....00000000
with ZIF socket . . . . MMM...CCC... MSAUIUDPS E+ICR DSTIYAASLTKEEMR 745823999...000000 PTTGHe6 UPRNA SDDUEDPRL'REC'STLEORCMK + 41499559...000000
We accept American Express credit card M.C. ROMWRITER 255.00 TG JOYSTICK 65.00
SEE
INFORMATION
ORDERING
FOR
OPPOSITE PAGE. order. our super
of your
the time
stock on any of these itemss aoton as humanly possible.
out of to you as
If we run the items
will ru
fast service
Card.
Circle No. 7 on Reader Service
ou can't
beat
excel the
best/
Don't
tronix hesitate
hotline to contact
us
Component/ competi9ti2v1e- 41 14 for the inoostotur price
& Computing prices
In Canaaal
Inc
r SPECTACULAR PRINTERS
EXCELTRONIX INC.
OKI DATA
CATALOGUE
Okidata u82A. 80 column, pin or fric-
tion feed, 120 c.o.s., parallel or
in this issue EPSON serial $795
Okidata u83A. 132 column, friction
U of T 6809
Board SPECIAL MX80 type III $759 or tractor feed, 120 c.p.s. parallel or
MX8OFT type III $869 serial $1250
. . . Daisywriter-100. 132 column,
Perfect a$s 3a s7tar5ter MX82 type III $825 serial, daisy -wheel letter quantity
MEMORY SUPER MX82FT type III $959 TEC $1795
KIT SPECIALS . . .
PRICE MX100 type III .$1069 Tec-Writer I. 80 column, tractor &
Requires RS232 Terminal very good stock Note: All type III. p.r.inters in- friction feed, parallel and serial$645
Includes 6809, 2 (6522) parallel clude graphics. All printers Tec-Writer II. 120 c.p.s., 132 column
ports. 2 (6551) serial ports, 48K of come with 90 day warranty. tractor & friction feed, parallel &
dynamic RAM, 4K of monitor.
serial $1250
Optional 8K of U of T Assembler
Apple Interface card and cable Tec-Writer III. Daisy -wheel, 40 c.p.s.,
and Editor available at $160 ex-
tra. for Epson printers $149 2K buffer $2450
Read May 1982 ETI for review of 4164-15Ons $12.95 Quantity Discounts Available. Please call.
this 6809 Board. (1 x 64K single (+5V) supply)
NEW MULTIPLEX PRODUCTS
DISK DRIVES 4116-15Ons (1x16k) $2.50
SPECIAL 4116-200ns (1x16k) $1.95
4116-300ns (1x16k) $1.75 Extended Introductary Special. Prices good
This Month Only! 2114L-200ns low power $1.95 for November only
TMM 2016 (2k x 8 static
SA400L $289
RAM) $9.00 Multiflex Intelligent Terminal Kit
(51/4" SS Shugart) NOTE: 1 of these can do the
SA200 $285 job of 4 2114's but uses only As described in this issue $195
(51/4" Slimline SS Shugart) one 24 pin socket Case: $45.00 Power Supply $38.00
SA801 $669 6(s1a1m6 e(2 ak sx 8a)bove but CM$O1S1).00 New Improved Multiflex Kit,
(8" SS Shugart) 2102 CFPC $1.80 Great for beginners or pros w369
SA851 $895 5101 CMOS $3.85 Comes with a motherboard and a S100 CPU card. Standard features:
(8" DS Shugart) 2708 EPROM (1k) $5.95 Motherboard
CONTROL DATA 2716 EPROM (2k) $5.50 Includes 32 keypad with 16 HEX and 16 control keys: HEX display; Cassette In-
2732 EPROM (4k) $8.95 terface; EPROM Programmer for 2708, 2716, 2732, 2532, 2764, 27128; Wire -Wrap
CDC 9409 $399 2532 EPROM (4k) $9.95 area (space for about fifty 14 -pin chips); Parallel Port (8255); S100 Connector
(51/4" DS DD) 2764 EPROM (8K)300ns S 17.95 (with space for three more).
CDC 9406 $595 FOR QUANTITY CPU card includes
(8" DS DD) 780A CPU, 2732 (EPROM with our monitor), 6116 (2K x 8 RAM) and all the cir-
PRICES CONTACT cuitry. The CPU card has provision (but kit does not include the parts for) 64K of
BEST PRICES ON US FOR REALLY RAM, 4 sockets for EPROMIRAM (2732, 2764, 6116, 8255), parallel port and
8253 timer. Also piggyback board is available for this CPU with 2 serial ports,
OSCILLOSCOPES SUPER PRICES real time clock and much more.
Multiflex Floppy Controller Board Kit
Based on the 1793, can handle up to four 8- or 5's SS o$r DS2. DD9. di5sks.
Shugart compatible.
We carry a wide stock of
microprocessor chips, CP/M and BIOS for this card $169
TTL, CMOS, linear and Multiflex 80 x 24 Video Board Kit $285
discrete components, Uses Z80A, 8257, 8275 ASCII keyboard input provided.
for example: Now the Unbeatable!
Z80A CPU $6.25 Purchase this package below for only
HITACHI 6800 CPU $6.26 9951
6502 CPU $7.89 A. Multiflex Kit (as described above)
HAMEG B. 64K of RAM (8 a 4164 200nS)
68000 $89.00
C. Video Board (80 x 24) as above
LEADER TTL D. Floppy Controller
E. CP/M Software
74LS00 254 F. SA400L 51/2" Disk Drive
Check out pages
74LSO4 25c Believe it, it is real!
34.37 in our
Catalogue 74LS244 99c Multiflex Keyboard $120
Check our Catalogue Keyboard Case 525
Power Supply (5V 5A +12V 1A, 12V 0.5A) $99
3A1L9L CPORLICLEEGSEARSTERIENsEaRnt faeefCTorgmlironde,Atg mila aabbNTr elgCereOo Af-otoqhrRpDPauq.tRuaOIaaInACntttNiEstNyE TxpocPuneOr OlcytrhooL,aunIsriCxe Oo,sYw.anNIllf, yhTpooruiwAc c eaaRsbn oanuIoreOtt .cpssSaaienrClendged n.sN AO cdofai. nx,saN thsa i)crgV.iA oeniMsarairtDtnMue dairmsenAiAcdu.dhemeI eML,nxqtpo asuOirsrdeytmee Rodrr uracIDssat emtSrE da1aodR0nnaddecpS y7cnl uea%ospmr d5teepe3 drr oofof(vrdbinsosaech nnniipkaod .l-t I mastercharge
FUNDS, MST 1S2
9% FEDERAL [phone]
SALES
TAX INCLUDED
Circle No.5
on Reader
Service Card
"Is it wishful thinking to want a
50 MHz portable scope with
1 mV/div sensitivity for under $2,600?"
HITACHI HEARD YOU.
Not since Hitachi introduced the dual trace, delayed wherever it's needed.
sweep V-509. For only $2,590 you get a dynamic range Hitachi's human engineering is evident in every
of 8 full divisions. Sensitivity to 1 mV/div at 10 MHz. And facet of V-509 design. Its bright, 3.5" diagonal CRT is
sweep times down to 10 ns/div. For today's sophisticated easy to read. Functionally grouped front -panel controls
electronics, computers and VTRs, it's the perfect field make for fast, efficient use.
service tool. Also from Hitachi is the V-209, list price $1,450. A 20
Weighing a mere 11 pounds, in an 8.5" x 4.3" x MHz, dual trace, mini -portable scope with many of the
13.8" package, the V-509 is, nevertheless, a heavyweight same performance and ease -of -use features as the V-509.
when it comes to perform- So if you're thinking about
ance. Auto focus, a built-in purchasing a mini -portable
TV sync separation circuit scope, you know who to
and Channel 1 DVM output think of.
are standard. There's even a Hitachi Denshi Ltd. (Canada)
single -sweep function to HEAD OFFICE:
reliably measure one-time 65 Melford Drive
events. Plus AC/DC operation Scarborough, Ontario MI B 2G6
and an optional battery pack, Tel. [phone]
so you can take the V-509 Telex 065-25324
Circle No.21 on Reader Service Card.
ADVERTISERS' INDEX
The Magazine for Electronics & Computing Enthusiasts
Aaron -Gavin 73
Active Component Sales Corp. 45
Audlovlslon 69
NOVEMBER 1982 BCS Electronics 48,73
Vol. 6 No. 11 Classified 66
Daetron 75
ISSN 0703-8984 Built Bureau Electronic Packaging Systems 71
of CIrculatloos Electronics 2001 69
Employment and Immigration 12
Features Exceltronix 2,3
F&T Associates 48
General Electronics 69
Gladstone Electronics 77,78,79
Graymark 69
Hitachi-Denshi 4
Solar Energy In Canada . . . .10 imperial Tobacco 44
Metermaster .7
Gives you that warm feeling McGraw-Hill 33
Nu -West Video Systems Ltd 71
Orion Electronic Supplies 9
Synthesizer III 22 Parts Galore 75
Patrick Computer Systems Inc 73
H. Rogers Electronic Instruments 72
This month, the VCF. Smith Corona 46
Surplus Electro Quebec 48
Surplustronics 34
Flat Screen TV 27 The Electronics Book Club 11
Tektronix 36,37
I've got Mork in my pocket (and Torch International Computers Ltd 80
I Versacom Systems Inc 73
don't know what to do with him).
NEWSSTAND DISTRIBUTION:
Master Media, Oakville, Ontario
Bulletin Board Update 30 SUBSCRIPTIONS
$18.95 (one year), $29.95 (two years). For US add
The continuing saga of the ETI Our cover. While fossil fuel is a form of solar $3/yr., other countries add $5/yr. Please specify if
Bull. energy, it is not nearly so favourable as using subscription is new or a renewal.
the stuff directly. This month, we consider the
techniques. Photo by Steve Rimmer. Also, a
look at the frequently long awaited Apple III. BBIiNndDeErRsS made especially for ETI are available for
Fostex A-4 Review 32 $8.00 including postage and handling. Ontario
residents please add provincial sales tax.
A four track tape system for musi-
BACK ISSUES AND PHOTOCOPIES
cians . . instead of engineers. Previous issues of ETI Canada are available direct
from our offices for $3.00 each; please specify by
month, not by feature you require. See order card for
issues available.
Apple III Review 35 We can supply photocopies of any article
published in ETI Canada; the charge is $2.00 per arti-
A juicy new microcomputer. cle, regardless of length. Please specify both issue
and article.
Intelligent Terminal Project .40 COMPONENT NOTATION AND UNITS
We normally specify components using an interna-
Construction details of the ter- tional standard. Many readers will be unfamiliar
with this but it's simple, less likely to lead to error
minal project that's smarter than and will be widely used everywhere sooner or later.
ETI has opted for sooner!
some computers. Firstly decimal points are dropped and substituted
with the multiplier: thus 4.7uF is written 4u7.
Capacitors also use the multiplier nano (one
nanofarad is 1000pF). Thus 0.1uF is 100nF, 5600pF
What is CPIM? 51 is 5n6. Other examples are 5.6pF = 5p6 and 0.5pF
= Op5.
The question that has been plagu- Resistors are treated similarly: 1.8Mohms is 1M8,
56kohms is the same, 4.7kohms is 4k7, 100ohms is
ing mankind for pico-eons 10OR and 5.60hms is 5R6.
answered.
PCB SUPPLIERS
Voltage Controlled Pots .54 ETI magazine does NOT supply PCBs or kits but we
. . . do issue manufacturing permits for companies to
Save your fingers ... do it elec- manufacture boards and kits to our designs, Con-
tact the following companies when ordering boards.
tronically. pg.40 Please note we do not keep track of what is
Columns, available from who so please don't contact us for in-
formation on PCBs and kits. Similarly do not ask
PCB suppliers for help with projects.
Dolby C 59 News and
K.S.K. Associates, P.O. Box 54, Morriston, Ont. NOB
Tapes so quiet you'll think you've Information 2C0.
BR Electronics, P.O. Box 6326F, Hamilton, Ont., L9C
blown a fuse. 6L9.
Wentworth Electronics, R.R.No.1, Waterdown,Ont.,
Projects LOR 2H0.
Danocinths Inc., P.O. Box 261, Westland MI 48185,
News 6 USA.
" Next Month 23 Arkon Electronics Ltd., 409 Queen Street W., Toron-
to, Ont., M5V 2A5.
ETI Special.. 53 Beyer & Martin Electronic Ltd., 2 Jodi Ave., Unit C,
Downsview, Ontario M3N 1H1.
Solid State Reverb 17 Order Form 56 Spectrum Electronics, Box 4166, Stn 'D', Hamilton,
A sonic project ... project ... pro- Subscriptions 57 ODnatcaoriro LLi8mVi t4eLd5, .P.O. Box 683, Station 0, Toronto,
sect ... project ... project ... ETI Bookshelf 62 M4T 2N5.
Into Digital 67
Computer Today 24 POSTAL INFORMATION
RPM Meter 49 Classified Ads 66 Second Class Mail Registration No.3955. Mailing
address for subscription orders, undeliverable
Never be Tach-less in polite com- Fun of Electronics 68 cEolpeicetsr oanndic csh aTnogdea oyf adIdnrteesrsn anotitoicnea ils,: Unit 6,
pany again. Tech -Tips 4 4 25 Overiea Blvd., Toronto, Ontario, M4H 181.
ews
N
of contact (edge wipe and side
Correction wipe), the ability to accept stan-
dard flat and round IC pins (from
In our October issue, the ad for 2.54 to 3.94 mm long), polarity
General Electronics on page 83 ap- notch for identification and
peared with incorrect prices. The automatic insertion keying. For
ad should have read Regular maximum packaging density, the tact Lanpar, 85 Torbay Road,
-$795.00 Special -$725.00. We sockets are end -to -end and side -to - Markham, Ontario.
apologise for any inconvenience side stackable.
caused. Two basic closed -frame
socket types are offered - sockets Single -Board Computer
DIP Sockets with solder tails and sockets with Satellite Surveyor
wrap -post tails. Sockets with wrap - Intel Corporation have announc-
A broad family of closed -frame post tails are available for 1-, 2-, A transponder guide to all ed a complete eight -bit microcom-
DIP sockets is now available from and 3 -wrap lengths. All sockets are satellites has just been published puter on a single board that pro-
Thomas & Betts Corporation, made from tough glass -filled by Mo'Day International giving vides 64 kilobytes of memory
Ansley Electronics Division. The polyester (meets U.L. 94V-0); con- full details of video and audio fre- capacity via JEDEC-compatible
sockets accommodate a wide varie- tacts are heat -treated beryllium quencies, polarities, satellite loca- 28 -pin sockets. The new board car-
ty of DIPs in pc board uses that re- copper with gold -over -nickel tions, all sub -carrier information ries a high degree of I/O flexibility
quire frequent removal and plating; the sleeve is made from together with programming notes for a wide range of end -product
replacement of DIP devices. brass with gold -over -nickel or tin - and programmers addresses. applications.
Available in 6 through 40 over -nickel plating. All T.V. and audio transmis- The new board is built around
positions, the sockets offer: ex- The sockets are designed to sions are constantly monitored on Intel's 8080A eight -bit, n -channel
tremely low profile (down to 4.32 operate at temperatures ranging both U.S. and Canadian satellites microprocessor. The board is
mm, or 0.170"), precision - from -65 to 125°C (gold sleeve) or while international listings are designed as a highly integrated
machined contacts for smooth en- from -40 to 100°C (tin sleeve). monitored by NORAD. Also in- solution for OEMs that want to br-
try and high reliability, four points For further information con- cluded are military space activities ing interlligent products to market
tact Customer Service, Ansley of all the major powers. with a minimal amount of develop-
Electronics Division, Thomas & Four quarterly issues are ment time.
ETI Magazine is Published by: Betts Corporation, 920 Route 202, $17.95. Sample copy is $5.00 from The board provides designers
Raritan, NJ 08869, [phone]. Mo'Day International, 4023 with a high degree of memory flex-
Electronics Today International Lakeview Drive, Lake Havasu Ci- ibility. Six 28 -pin JEDEC-
Editorial and Advertising Offices ty, AZ 86503. U.S.A. Additional compatible sockets for SRAM (2K
Unit 6, 25 Overlea Boulevard, Information from David Day, x 8, 8K x 8), EPROM (including
Toronto, Ontario, M4H 1B1 Editor [phone]. 27128), and E'PROM (2K x 8, 8K
Telephone [phone]
x 8) memory components provide
Publisher capacity up to 64K bytes. The
and Editor: HaIvor W. Moorshead board contains two kilobytes of
Assistant Editor: Steve Rimmer Keyboard static RAM in one of the six
Production Manager: Ann Rodrigues Printer sockets and has 48 programmable
Production: Cindy Baker Stackpole's KS200 keyboards and I/O lines; its USART channel is
I. iz Longwill Lanpar Limited has announced the keyswitches are now available "off RS -232 compatible.
Subscription Department: Behe Lail introduction of the Letterprinter the shelf" from Canadian Plug compatible in most in-
Nadia Marar LA 100, a new low cost matrix Stackpole Limited, Components stances with previous Intel and
Accounts Department: Pirjo Dunphy printer featuring high -resolution Division. other MULTIBUS vendor board
Advertising Manager: Senga Harrison letter -quality copy, graphics and The Stackpole keyboard pro- products, the board allows OEMs
Advertising high-speed draft -quality printing. gram includes standard 54 and 62 to cost reduce their present system
Representative: Omar Vogt This lightweight, desk -top printer key monolithic main arrays, a due to low board price and increas-
Advertising Services: Carolyn Wyatt can be used with conventional variety of ancillary arrays, discrete ed memory and I/O flexibility.
small and medium-sized computer momentary and latching keyswit- With two on -board iSBX bus
systems, personal computers and ches. connectors, the iSBC 80/16 board
COPYRIGHT small business computer and word- This program, specifically allows low-cost, modular I/O ex-
All material is subject to worldwide processing systems. geared to the needs of the Cana- pansion via 14 Intel iSBX modules
caorep ycroigphytr ipgrhott eacntdio nn.o cAomll PpaCnBy pcaatnte srnesll The Letterprinter LA 100 can dian market, features fast tur- available from Intel. This I/O flex-
boards to our design without our permis- produce typical 7 x 9 dot matrix naround time on custom keycap ibility will allow OEMs to imple-
sion. quality output at a speed of 240 legends, at moderate set up costs. ment previous MULTIBUS I/O
characters per second. For further information, con- expansion via the iSBX bus,
Near -letter -quality output is tact Canadian Stackpole Limited, thereby also reducing overall
LWIAhBileIL IeTvYery effort has been made to en- achieved by slowing down the LA Components Division. Consumer system cost.
sure that all constructional projects refer- 100's print speed and overlapping inquiries will be handled by Ex- The iSBC 80/16 single -board
rdaelilcd na tetoec dien se tshffaiiscry ime cnaotglmya pazoinnndee pwnrtiosllp oaeprreely ra aavtnaed ilaa tsbh liaent,- mchaatrraixcterd oshtsapetso. Ifnormthis smmoodoeth, cTeolrtoronntoix, ,M53T1 91S2C; o4l1l6eg-9e21-S5t2r9ee5t., csionmglpeu -tuenriti spriacev aoifl a$b54le0 .now at a
no responsibility whatsoever is accepted each character is formed by up to
in respect of the failure for any reason at 33 dots horizontally and 18 dots
aatll oafl lt hweh pertohjeecr td tuoe o ptoe raantey efaffuiclitenintly t hoer vertically, at an average print
design or otherwise and no responsibility speed of 30 characters per second.
is accepted for the failure to obtain com- The number of characters per
ponent parts in respect of any such pro- inch as well as choice of fonts, tab
ject. Further no responsibility is accepted
in respect of any Injury or damage caused settings, printing speeds and
by any fault in design of any such project margins are program or user -
as aforesaid. selectable.
A new snap -in ribbon car-
tridge, with ten times the lifespan
EWDrIiTttOenR IqAuL eQrUieEsR cIEanS only be answered of conventional ribbons is
when accompanied by a self-addressed, available for the printer. The print
sretacmenpte adr teicnlevse laonpde .n Toht einsveo lmveu stht ere slatatfef itno head is user replaceable. The
any research. Mark such letters ETI- printer features an internal self -test
Query. We cannot answer telephone so the user can check its proper
queries. operation at any time.
For more information, con-
6-NOVEMBER-1982-ETI
OSCILLOSCOPES!
The Best Buys Available
Model 65310 Model 65601
$795.00
Dual Trace Bench/ $795.00
Dual Trace Portable Scope Probes and F.S.T. Portable Scope Probes and F.S.T.
included included
15 MHz (-3dB) Bandwidth 2 mV Vertical Sensitivity Featuring At No Extra Cost 'The Component Tester'
X5 Sweep Magnifier Trace Rotator 20 MHz (-3dB) Bandwidth Trace Rotator
Battery, 12 VDC & AC 6" CRT Display 2 mV Vertical Sensitivity
Operation Fully Automatic Triggering H F Rejection
Model 65625 Model 65635
$1385.00 $995.00
Dual Trace Bench/ Dual Trace Bench/
Portable Scope Probes and F.S.T. Portable Scope Probes and F.S.T.
included included
45 MHz (-3dB) Bandwidth Illuminated Internal Graticule 35 MHz (-3dB) Bandwidth Optimal Sensitivity of 1 mV
Delayed Sweep (selectable) Optimal Sensitivity of 1 mV Delayed Sweep (selectable) X-Y or X-Y-Z Operation
Single Sweep (selectable) X-Y or X-Y-Z Operation Single Sweep (selectable) 120 VAC Line Operation
Extremely Bright 5" CRT 120 VAC Line Operation 6" CRT Display X5 Sweep Magnifier
Metermaster
C HAW...EX All prices F.O.B.
Downsview, Ontario
VISA
subject to change with-
R. H. NICHOLS 5% Discount for Cash, out notice. P.S.T. extra
Certified Check, or Money Order where applicable.
L
Head Office: 214 Dolomite Drive, Downsview, Ontario M3J 2P8 Circle no. 11 on Reader Service Card.
IIIII
TORONTO [phone] MONTREAL [phone] EDMONTON [phone] OTTAWA [phone] IN
NEWS
Patent Data two) can be used by itself or Also
logically combined with a bit from
"Over 10,000 U.S. patent the other group to determine
abstracts, representing the world's branch condition status. For exam-
most significant data processor ple, a single micro -code instruction
technology, is assembled in 7 could incorporate "branch if less
volumes," said Jay Harding, than equal" by having an ALU
spokesman for Patent Data. sign bit on one set of condition in-
"In 10,000 DATA PRO- puts, and zero detect on the other. A draft report from a federal task
CESSOR PATENT ABSTRACTS The six condition inputs expand force says that immediate action is
Patent Data has for the first time with additional sequencer circuits. needed to develop a Canadian -
collected abstracts of all patents Two MC10904s can address 64K owned microelectronics industry.
devoted to electric digital data pro- micro -code words and provide up Efforts so far in the field "appear
cessors or calculating systems," he The 28 -pin devices that can be to 12 conditional branch inputs. to be rudderless and the need for
explained. "Since foreign com- programmed by the PM9076A are The MC10904 is priced, in action is urgent". It recommends
panies also patent their most im- the 2564, 2764 and MK2764 100-999 quantities, at $100.00, im- that the government create an in-
portant ideas in the United States, PROMs; 24 -pin devices include the mediate availability is from the dependent centre for technology
we believe this set represents the 2516, 2532, 2716, 2732, 2732A, factory and through authorized
d that millions of dollars should
most complete reference collection 2758,27C16, 2808,2816 and 48106 Motorola distributors.
of data processor technology in the PROMs. ;he made available for this.
world today. Pro -Log's generic gang per-
"Few people know that more sonality modules can A survey reported in the Globe and
than 80% of the technology reveal- simultaneously program eight PCB Trolls Mail shows that the current reces-
ed in patents does not appear in the PROMs from any family of 5 -volt sion is so bad that even the com-
technical literature-or anywhere MOS devices, including the latest puter industry, until now regarded
else! Nor do most people know E'PROMs. Programming PCB Trolls stole the printed circuit
immune, is hurting. A check by
that a majority of the important algorithms and PROM pinouts are board design from the 150 watt
discoveries are brought to light reconfigured simply be plugging in amp article. We caught 'em, ETI with a number of companies
first in the patent literature. the appropriate 40 -pin gang con- thrashed 'em within an inch of shows that the worst hit seems to
"The set contains hundreds of figurator (E' devices require two their scaly little lives and got the be the minicomputer field; main-
software patents, too", Harding gang.) board back. It's included in this frame companies show some slow-
said, "a subject of great interest issue at the end of Computing To- ing while the microcomputer end is
since the United States Supreme day. still healthy.
Court last year gave the green light Micro -Code Sequencer Anyone know a way to shut
to patenting certain classes of com- up crying trolls?
Video game computers could turn
puter software." An 8 -bit Micro -Code Sequencer Continued on page 26
out to be a craze as short-lived as
"Because of the uniqueness of Integrated Circuit based on the bit -
patent information and the com- slice concept that permits simple CMOS EPROMs skate -boards. The stock prices of
pleteness of this set, it should pro- expansion to a width of 24 bits has companies in the field have fallen
ve to be very useful to those in the been announced by Motorola. The Intersil's semiconductor division I heavily in the last month or so. No
data processor technical communi- device - the MC10904 - is a has introduced the industry's first lone is pretending that computer
ty trying to learn what is happen- member of the M10900 family of 8K CMOS EPROMs, the IM6657 igames won't last, only that general
ing in the art and how to avoid high-speed ECL circuits which, by and IM6658. Like Intersil's 4k ver- 'purpose computers such as the
reinventing the wheel," he explain- virtue of LSI/VLSI architecture, sions, the IM6653 and IM6654, the
IVIC-20 and TRS-80 Colour Com-
ed. "However, perhaps the most offers state-of-the-art performance new pin -compatible 8K devices
intense use of our books will be to for computers, controllers and feature on -chip address latches and ! puler now offer very sophisticated
keep tabs on what competitors are other digital logic systems. chip select functions. t games, cost much the same as the
doing", he predicted. The MC10904 contains two The IM6657 (2k x 4) and dedicated types and have the ad-
The 7 volumes will be publish- main sections: (1) condition input IM6658 (lk x 8) are fully decoded vantage that they are far more flex-
ed as a series. Volume 1 will be control, and (2) micro -code ad- and erasable by exposure to ible.
available in December 1982; the re- dress control. It has a 4 -level ultraviolet light. Power comsump-
maining 6 volumes will be subroutine stack that can be push- tion is the lowest among existing RCA's advanced family of QMOS
available at month intervals ed and popped simultaneously, EPROMs, and interfacing is great-
thereafter. The1 set will be updated and contains two direct data inputs ly simplified by the use of the on - high-speed CMOS logic will be
periodically by the company. for jump and conditional branch chip address latches. Devices may available in production quantities
Send direct inquiries to Patent destinations. be order with access times of 450, in early 1983. QMOS combines the
Data Publications, Inc. at 901A N. A special P counter pin 550, 600 or 650ns. power consumption of CMOS with
President Street, Wheaton, IL simplifies loading RAM writeable The two new EPROMs are of- the high speed of Schottky TTL.
60187, USA. macroprogram memory. This in- fered in standard 24 -pin CERDIP
put can also be used to hold the packages, with prices beginning at Software that allows a computer to
PROM Programmer system on a microinstruction for $6.05 each in 100 -unit quantities respond to anyone's voice has
diagnostics. for the commercial grade 650ns
A new PROM programmer per- Each MC10904 handles up to part. recently been announced from
sonality module that can six branch condition inputs divided For further information con- F.Votan, a California company. The
simultaneously program either nto groups of four and two. One tact George Jennings at (408) , system is expected to sell (in quan-
eight 24 -pin MOS PROMs or eight bit from each group (of four or 996-5679. tity) for $2000.
28 -pin MOS PROMs has been an-
nounced by Pro -Log Corporation. MC10904 - B -BIT MICRO -CODE SEQUENCER BLOCK DIAGRAM Bits and Bytes is a 12 -part TV
The new PM9076A Gang Per- Condmon mooControl code Mont a Con:roi series produced by TVOntario, the
sonality Module replaces the provinces educational network,
eparorlgierramPmMed9 0o7n6ly m 28o d-puilne ,devwicheicsh. 5567 FProomp CSotnatcrkol wFehibcrhuarwyi l1l6bthe 1s9c8re3e ante 9d. 0s0ta prt.imng.
Like the earlier module, it works CAP Control
wPRithO PMro p -rLooggra'sm Mm9e8r0 m aansdt eMr 9c1o0nA- CCCAAA13I MCAu.CA DC4A1P0 --77 Tpahcek aTgVe saenrdie asc ciso mitspeanlfi epsa art coofm a-
trol units. SO al laCposmee Conti SO I Rep prehensive educational course in
PROAMcc oprrdoigngramtomeRr omgaerr kBeotirnng, CCOIOI Mu. RLD 4 Adore OutpPuOt P3 hhooww toto w orpitee rsaimtep ale c pormogpruatmesr .a Fnodr
manager, the PM9076A offers 52.55 ELO Load E details on the course contact: TVO
significant cost savings to those Corntunamon Solna EEN Coorn Enable Count ow Academy on Computers in Educa-
users programming both 24 -pin
don, Part -Time Learning, TVOn-
and 28 -pin PROMs. He said the SO
ndeewvi cmeosd iunl et haec cloowmemro 2d4a tpeisn s2 4o -fp iitns CN5C1OO Conaannsod4i1 Control ttaor, ioM, 4BTo 2x T210.0, Station Q, Toron-
28 -pin Zero Insertion Force C0I
cl°9°4
sockets. RSMT Fame PIOInc.
CEK Ck.a
8-NOVEMBER-1982-ETI
ORION START WITH ORION FOR INTERACT COMPUTER
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Circle No.6 on Reader Service Card. ETI-NOVEMBER-1982-9
lar Energy In
Canada
The ins and outs of collecting imately 20 percent of the energy con- tors, usually mounted on the roof of a
rays, and what to do with sumed in Canada, with the bulk, even building, and a separate heat storage
today, being derived from fossil fuels unit, (rock bin, water tank or a com-
them, by Roger Allan.
either as home heating oil, natural bination of the two) are often the ma-
gas or coal generated electric plants. jor elements of the system. Water or
It is therefore simple common sense air, pumped through the collector, ab-
WITH THE REALITIES of the Cana- that solar techniques of heating, be- sorbs heat and transports it to the
dian weather, once described as a ing non-polluting, renewable and storage unit. This heat is then sup-
motley collection of extremes col- relatively cheap, should be employed plied from the storage unit to the
lated by a manic depressive footfall whenever possible. spaces in a building by a completely
player, the application of solar energy There are three types of solar mechanical distribution system.
techniques to housing design and energy systems, active, passive and Passive systems collect and
heating and related matters is simply hybrid. The basic function of each is transport heat by non -mechanical
one of common sense. Historically, to provide space heating, water means. The most common definition
many cultures have utilized solar heating, day -lighting and in rare of a passive solar heating and cool-
techniques to a greater or lesser ex- cases, the production of electricity. ing system is that it is a system in
tent, including the classical Romans The state of the art being such as it is which the thermal energy flows in the
and Greeks, the Eskimos and other in regard to the production of elec- system are by natural means such as
North American native peoples. Even tricity by solar cells, the emphasis, radiation, conduction and natural
since Europeans reached North technologically and in this article, is convection. In essence, the building
America, passive solar techniques on the passive ,and hybrid systems. structure or some element of it is the
have been used, to wit, the pioneer's Basically, active systems system. There are no separate collec-
earth shelters. employ hardware and mechanical tors, storage units or mechanical
In Canada, the residential sector equipment to collect and transport elements. The most basic difference
(home heating) accounts for approx- heat. Flat plate or focussing collec- between the active and passive
10-NOVEMBER-1982-ETI