Practical Computing - April 1982, Volume 5, Issue 4

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Publication Date : April 1982

Publication Contents :

Page Item
2 Cromemco System One [Advert]
18 Force 2 [Advert]
41 Editorial [Article]
Peter Laurie
Canned thoughts.
43 Feedback [Article]
User's letters covering topics including Portable graphics, genealogy on micros, DNA parallels.
46 Universal appeal of CBM's new micros [News Item]
Commodore Business Machines is about to upset the microcomputer applecart with the introduction of a "universal microcomputer". The new machine will be capable of running software originally written for rival machines.
46 Building up knowledge [News Item]
Architects involved in computing will be able to build on their knowledge at the RIBA computer conference and exhibition.
46 Cheaper RAM for ZX-81 [News Item]
Byg Byte is an alternative 16K RAM pack for the ZX-81 microcomputer. Costing only two-thirds the price of the Sinclair memory add-on, the Byg Byte is fully compatible with the ZX-81.
47 SimpliCalc answers 'what if?' questions [News Item]
SimpliCalc is a 134-line Basic program which performs a host of "what if?" projections and other routines. The powerful program will run on an 8K or larger Pet.
47 Champion's winning ways [News Item]
Among commercially-available chess computers, the world champion is the Chess Champion Mark V. The machine has been proving its worth and pitting its "brains" against those of the human champions Karpov and Korchnoi.
47 ITT 3030 puts the accent on expansion [News Item]
The ITT 3030 is a microcomputer with the emphasis on expansion. Although the ITT 2020 used the 6502 processor, the machine was similar to the Apple II, the new micro is Z-80 based. Based on a modular construction, the 3030 can be upgraded into a much more powerful system simply by changing the plug-in printed circuit boards in the central processor cabinet.
48 The new Transdata Cx 502-S Superspeed Microcomputer [Advert]
49 The speed to rival Winchester systems [News Item]
The new Z-80B processor chip which runs at a fast 6MHz gives the Superspeed microcomputer its name. The machine is part of Transdata's Cx500 family of CP/M-based microcomputer systems.
49 Typewriter solution [News Item]
Olivetti daisywheel typewriters make excellent microcomputer printers - the only problem is interfacing them. The 250 Discom interface is approved by Olivetti and will allow a typewriter to interface all the common buses.
49 Fast Episode fits the desk-top bill [News Item]
The Episode is a microcomputer with "micro" dimensions - it occupies about as much desk space as a sheet of foolscap paper. Even so, it is a powerful stand-alone system based on the Z-80A processor running at 4MHz.
49 Stitch in time for clothing industry [News Item]
Clothman is an integrated system developed for use by the clothing industry. It has been developed by Taunton Electronics, a microcomputer systems house that specialises in providing computer systems for the clothing and allied trades.
50 Next One hits routine tasks [News Item]
The Next One is a program generator that costs only 100 plus VAT. The Next One writes to a disc file the program statements which makes up the created program.
50 Composing oneself with Music Maker [News Item]
The plug-in Music Maker module for the Texas Instruments TI-99/4A computer allows music to be composed, edited and played.
50 Economy of Cintcode [News Item]
BCPL Cintcode is a new implementation of an established systems programming language, BCPL. It permits larger and more complicated systems to be built and maintained on microcomputers.
50 How to make Tandy run as terminal [News Item]
Terminal is a product which allows the Tandy TRS-80 range of microcomputers to act as remote terminals to larger mini- or mainframe computers. The emulator runs under the standard Tandy DOS operating system, but a CP/M version is planned.
50 Zilog chip makes huge power savings [News Item]
The Z-80L is the latest version of the well-proven Z-80 microprocessor. The new chip is still an eight-bit device, but it consumes only 10 percent of the power of the standard Z-80.
50 Source of TRS-80 facts [News Item]
Tandy TRS-80 microcomputer users will find the TRS-80 software sourcebook an invaluable aid. The first volume of the sourcebook lists the details and sources of over 500 applications programs, written in the UK for the TRS-80 models I, II, III, the Tandy Colour Computer and the Pocket Computer.
51 First time on earth - Sharp MZ-80B [Advert]
52 "Give me one good reason why I should choose a VIC 20 home computer." [Advert]
53 Computer Fair Preview [News Item]
The 1982 Computer Fair, being held at London's Earls Court exhibition centre on April 23-25, provides a showcase for the whole gamut of small business systems and home computers. We look ahead to the highlights of the Fair.
54 Plotting to put HP-83 graphics on to paper [Review]
David Watt
We review the Hewlett-Packard Hp-83 computer with a special look at its graphics and plotting facilities.
58 Oki IF-800 Micro [Review]
John Dawson
John Dawson reviews the Oki IF-800 colour computer which is supplied with high-resolution colour graphics, a built-in printer and two 5.25-inch drives.
62 Hornet takes the critical path to completion [Review]
Peter Wood
The Hornet critical-path analysis program tested by Peter Wood.
65 Pearcom - the new, Apple-II compatible Euro-PAL colour microcomputer [Advert]
66 ACT Sirius 1 - Seeing is Believing [Advert]
Double-page, colour advert.
68 The DAI Personal Computer is Here! [Advert]
70 This CAD has plans for factories of the future [Article]
John Lewell
John Lewell brings us up to date with the latest developments in computer-aided design.
74 The if800 - Colour in your Computing [Advert]
Double-page, colour advert.
77 Data manipulation for 3D displays [Article]
M.S. Khaira [R.S. Khaira]
M.S. Khaira introduces interactive three-dimensional computer graphics.
83 Pet bookie [Type-In Listing]
Philip Day
A day at the races on the Pet, a game by Philip Day.
89 The direct route [Article]
Brian Reffin Smith
Brian Reffin Smith continues his series on graphics and design on the BBC Micro and the RML 380-Z.
92 The Perfect Machine [Article]
David Haynes
94 Down on the farm - 'Pastures new' for micros [Article]
Martin Hayman
Martin Hayman visits Bridgets experimental husbandry farm in Hampshire to discover how microcomputers are coping in the countryside.
97 Hypercube [Article]
Jonathan Bowen
Jonathan Bowen explores the possibility of a fourth dimension with a program for creating n-dimensional cubes.
100 Reading matters [Article]
Mike & Wendy Cook
Mike and Wendy Cook develop a program to help in teaching children or adults with reading difficulties.
106 Fast bubbles [Article]
Cliff Stanford
A large part of any business package's working life is spent sorting information. Cliff Stanford shows how even the common bubble sort can be streamlined for efficiency.
108 How shell method orders strings [Article]
Eric Dale
Eric Dale scrutinises the shell algorithm as a solution for faster sorting.
117 Open File [Article]
A 13-page section of your programs, including Z-80 Zodiac, ZX-80/81 Line-up, 6502 Special, Pet Corner, Apple Pie and Tandy Forum.
121 Sinclair ZX81 Personal Computer [Advert]
Four-page, colour advert.
143 Micromouse: The heat is on [Article]
John Billingsley
British organiser, John Billingsley, sets the scene for this year's Micromouse final at the Computer Fair.
144 Crossing the hexagons [Article]
Tony Roberts
148 Pet holds the purse-strings [Type-In Listing]
Roger Valentine
Roger Valentine presents a complete payroll program for the Pet.
159 Buyers' Guide - Microcomputers [Article]
175 The War Machine - Zork [Review]
Peter Fitch
Zork - an advanced adventure game with a mixture of science fiction and fantasy.
209 Tomorrow's tomorrow's prices - Hi-tech Electronics SAM board [Advert]

ISSN Number : 0141-5433

Creator : IPC Electrical Electronic Press

This exhibit has a reference ID of CH3967. Please quote this reference ID in any communication with the Centre for Computing History.

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