March 1982 Adventure the greatest game Giant mazes Reviews: 16 -bit Sirius Sales Ledger Cromemco System One MicroCentre introduce Cromemco's new System One computer, available with an integral 5 megabyte Winchester hard disk, at a new low price. The System One supports the full range of Cromemco interface cards, including high resolution colour graphics, and software packages. The choice of operating systems includes CDOS, CP/M and CROMIX Cromemco's answer to Unix. Call MicroCentre for Q Cromemco 30 Dundas Street MicroCentre Ltd Britain's independent (Complete Micro Systems) Cromemco importer Edinburgh EH3 6JN Tel: 031-556 7354 Pride Comppt CONTENTS 41Editorial / The end of history Adveldure - tbe great. game Giant mazes 43Feedback / The NEC PC -8001B; ICL's views on its place in the micro Revis,ws: 16.1nt Shins market; Pet data transfer midge= Sm,,se, tradting 46Printout/ Torch twin -processor micro; multi -headed Hydra for Pet; two new correspondence -quality printers 53Printout Extra/ Bill Bennett visits a Curry's Micro -C store to look at the Adventure; the greatest game - page 89 service agreements on offer Editor Peter Laurie 54Sirius/ We review the 16 -bit Sirius computer, designed by Chuck Peddle, Associate Editor the man behind the 6502 microprocessor and the Commodore Pet Duncan Scot Deputy Editor 61Ricoh printers / Chris Bidmead tests the RP -1600 daisywheel and Toby Wolpe ApTech's Flowriter, a U.K. product based on the Ricoh mechanism Assistant Editor 69Gemini Video Board/ The new Intelligent Video Card from Gemini Bill Bennett Nick Laurie Sub -editor - you can use it in your Nascom - reviewed by John Liebmann 71Kontron/ Mike Hughes examines the West German Kontron business Prestel Editor micro with a built-in hard disc. Is it really worth the extra cost? Martin Hayman Editorial Secretary 77Apple software / An investigation of Shape Manager from Sinta, and Julie Milligan Sensible Software's Aplus, which offers you a structured Basic Consultants Technical Nick Hampshire Sales Ledger / Peter Wood reviews a combined ledger, stock -control Software 84 Chris Bidmead and invoicing package by Anagram Peter Wood Editorial! 01-661 3500 89Adventure/ Dennis Ellis gives you the history and prospects of this ever - Advertisement Manager popular game, along with a digest of the many versions for different David Lake 01-661 3021 machines. You can also try your hand at Graham Relf's Monster Maze Assistant Advertisement Manager Ken Walford 01-661 3139 97Labyrinth / A portable Adventure -style game by P J Goss Advertisement Executive Philip Kirby 01-661 3127 100Trojan Horse / Fiction by Marise Morland Midlands office: David Harvett 021-356 4838 103Atom in exile / Martin Hayman narrates the tale of an Acorn Atom's Northern office: role on a geographical expedition to St Helena Geoff Aik;n 061-872 8861 Advertisement Secretary 104Satellite tracker / Use this program to pinpoint artificial satellites Mandy Morley Publishing Director 107Telesoftware/ Marketing skills and Prestel combine in a powerful bait Chris Hipwell for micro buyers Published by IPC Electrical Electronic PressLtd,Quadrant House, The 108Patsy/Test your aptitude as a programmer with a program based on the Quadrant, Sutton, Surrey SM2 5AS. Tel: infamous IBM examinations 01-6613500. Telex/grams 892084 BIPRESG. Typesetting by Action Typesetters Ltd, 116Art / Brian Reffin Smith's stimulating pages, with more inside tips on London E17. Printed by Eden Fisher Ltd, Southend- graphics and design on-Sea. Distributed by IPC Business Press (Sales 119Open File/ A new 15 -page section of your programs, incorporating Z-80 and Distribution) Ltd, Quadrant House, The Quadrant, Sutton, Surrey SM2 5AS. Zodiac, ZX-80/81 Line-up, 6502 Special, Pet Corner, Apple Pie and Tandy Subscriptions:U.K.£10 per annum; Forum Overseas £16 per annum; selling price in Eire subject to currency exchange fluc- tuations and VAT; airmail rates available 149Micromouse More news of the Micromouse contest from Nick Smith on application to Subscription Manager, IPC Business Press (S & D) Ltd, Oaktield House,Perrymount Road, Haywards 151Book reviews Heath, Sussex RH16 3DH. Tel: 0444 59188. 153Puzzle IPC Business Press Ltd 1982 ISSN 0141-5433 Would-be authors are welcome to 155A price list from a Pet / Solving the problems of a retail warehouse send articles to the Editor but PC can- not undertake to return them. Payment Is at £30 per published page. 159Unix/ Is this the operating system that will oust CP/M from the number - Submissions should be typed or com- one slot? puter -printed. Handwritten material is liable to delay and error. Every effort is made to check articles 165Peripherals buyers' guide and listings but PC cannot guarantee that programs will run and can accept no responsibility for any errors. 179The War Machine /D-day -a battle simulation game Prestel page number 357 44, 101 for inside cover PRACTICAL COMPUTING March 1982 3 ALL DEVICES FULL SPEC. AND FULLY GUARANTEED. TERMS OF BUSINESS: CASH/CHEQUE/P.O.S. (OR ACCESS) WITH ORDER. GOVERNMENT AND WATFORD ELECTRONICS EDUCATIONAL INSTITUTIONS OFFICIAL ORDERS ACCEPTED. TRADE AND EXPORT INQUIRIES WELCOME. (P&P ad 50p on all orders under £10.00). 33/35, CARDIFF ROAD, WATFORD, HERTS, ENGLAND ALL PR RE EXCLUSIVE OF VAT. PLEASE ADD 15% TO THE Tel Watford 10923/ 40588- Telex: 8956095 VAT TOTALCOSTAINCLUDING PEt P. SHOP HOURS: 9.00am - 8.00pm MONDAY TO SATURDAY. MAIL ORDER CALLERS WELCOME AMPLE FREE CAR PARKING SPACE AVAILABLE. COMPUTER Z8OACPU4M 385. 7491 46 1504 15 LS295 215 4071 20 IC's Z80 P10 290 7492 30 1506 15 LS298 130 4072 20 ETI/ WATFORD'S MICRO 1702 299 LS299 420 4073 20 SPECIAL LS08 15 1802CP 700ZEIOAP10 320 7493 30 7494 LSO9 15 L5300 157 4075 20 2101-2 110280 CTC 300 34 EXPANSION SYSTEM 280A CTC 7495 LSI 0 15 LS302 175 4076 60 2112-2 250 325 50 4077 Z8ODMA 999 7496 45 LS1 1 15 LS320 270 26 DesignedbyWatfordElectronics,this OFFER 2114L -300n 8; L5323 270 4078 26 Z80310-1 15 7497 120 LS12 15 1 50 2114L-2000 87 LS423 200 4081 26 extremely versatile and economical Expan- Z8OAS10 23 74100 86 LS13 30 2118-3 LS323 270 4082 21 sion System as published in E.T.I., starting 2114L -450n 90p 85p 250Z80 DART 74104 64 LS14 48 2118-4 200 726 LS324 200 4085 65 Z80A DART 725 74105 55 LS15 16 from Dec., 1981 issue, offers a low cost 2114L -300n 87p 80p 2147-3 425 LS325 320 4086 70 ZN419CE 190 74107 32 1520 15 flexibleexpansion systemforZX81, 253245011 450 LS326 330 4089140 2114L -200n 87p 80p ZN423E 138 74109 35 LS21 16 UK101, SUPERBOARD, ACORN ATOM, 2564 20 LS327 316 4093 43 175p 160p ZN424E 130 74110 40 LS22 15 PET, TANGERINE, etc. 2708 2708 175 LS26 18 LS347 150 4094168 ZN425E 345 74111 56 2532 450p 375p 2716-5V LS27 15 LS348 190 4095 90 210ZN426E 74112 170 The Motherboard (interfaces with the com- 2732-450n 400 300 74116 LS28 20 LS352 186 4096 90 2716 210p 195p ZN427E 600 88 2764 19 74118 80 LS30 18 15353 186 4097320 puter) has capacity to accept up to five ZN428E 478 4098 2732 400p 375p 4027 240 74119 90 LS32 15 15365 37 se daughter Cards and can be paralleled for ZN429E 210 L533 16 LS36637 4099 95 4027 240p 215p 4116-150n n 74120 75 4160 even more Daughter Cards. 4116-200n ZN1034E 200 74121 30 LS37 16 LS367 37 95 4116 75p 68p ZN1040E 675 LS36890 4161 99 4118-250 400 74122 45 LS38 18 All PCBoards are of computer grade finish 743132 138 LS373 75 4162 99 4334-3 325p 290p 4164-200 620 74123 50 LS40 16 and are supplied in Kit form. 4315-4K 74S138 210 74125 42 LS42 36 LS374 75 4163 99 6116-3 580p 550p 795 48 4174 743188 210 74126 40 LS47 40 LS375 99 4334-3 1537790 4175 105 Just look at the Expansion possibilities. 6522 350p 320p (CMOS2114) 743189 158 74128 42 LS48 so 325 743194 LS37869 4194 105 4864-3 64K 785 360 74132 48 LS49 60 743201 LS51 15 LS37965 4408790 MOTHERBOARD - Accepts up to five 5101 270 350 74136 35 743241 LS54 15 LS384 395 4409790 Daughter Cards. Full Kit: £36.50. Justphone 6116-3 580 540 74141 70 743262 850 74142 190 LS55 30 LS385 378 4410725 6147-3 LS63 150 LS39062 4411 695 SOUND CARD - Utilising up to three AY - your order 6502 -CPU 399 743287 325 74143 250 743288 74144 250 LS73 25 LS39360 4412800 3 -8910 sound chips. (one supplied with the 6503 600 210 4415 Buy it with Access 74S470 74145 70 LS74 25 LS395 199 480 through, we 6504-250 295 325 4419 kit). Full Kit: £24.95. 743471 74147 99 LS75 28 LS399 220 280 6505 600 620 LS445 140 4422770 47148 75 LS76 20 do the rest. 6520 PIA 175 745472 1150 LS471 620 4433770 PIO CARD - Using two 6520 PIA chips 745475 825 47150 80 LS78 24 6522 VIA 350 1583 50 15490 246 4435850 this Board offers Centronics parallel printer 74S571 620 74151 45 L5541 136 4440 6530 RRIOT 1350 74153 45 LS85 70 999 driver, digital to analogue converter & a host 6532 RIOT 75150 125 LS640 225 4450350 EPSON 670 75108 74154 75 LS86 38 of other output facilities. Full Kit: £19.95. 6545 CRTC 1450 350 1090 36 LS641 225 4451 350 75182 115 74155 75 MX Series 6551 ACIA 785 LS91 80 LS645 210 4490350 PROM PROGRAMMER - This simple but 75183 115 74156 75 6592 PC 20 LS92 36 LS668 175 4500675 PRINTERS 75154 150 74157 45 extremely useful card can blow 2716 or 6800 300 74159 LS93 36 LS669 150 4501 28 75188 65 99 LS670 175 Single rail EPROMS.