Practical Computing - February 1981, Volume 4, Issue 2

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Publication Date : February 1981

Publication Contents :

Page Item
6 Sharp MZ-80 Computer System [Advert]
Double-page advert
10 [Advert]
21 Altos Computer Systems - ACS8000 [Advert]
33 Fortronic F500 [Advert]
35 Hewlett-Packard HP-85 [Advert]
41 Editorial [Article]
Peter Laurie
Ready next week.
42 Feedback [Article]
User's letters.
46 Prestel price to fall with new add-on sets [News Item]
Prestel may receive a much-needed boost in the shape of cheap add-on terminals promised by two UK firms for this year, Tangerine Computers and Radiofin.
46 Big Ears for speech input [News Item]
A speech input device for most popular microcomputers has been announced by William Stuart Systems Ltd. Marketed under the name of Big Ears, the system consists of a microphone, pre-amplifier, analogue frequency filters and digital interface complete with software.
46 'No software limitation' claim for multi-user UniFlex [News Item]
A new operating system for microcomputers based on the Motorola 6809 chip has been released in the UK.
46 Gemini's twin floppy-disc system is for Nascoms 1 and 2 [News Item]
Gemini Microcomputers, the new microcomputer manufacturer founded recently by John Marshall, who helped start Nascom, has introduced a CP/M floppy-disc system for the Nascom 1 and 2 micrcomputers.
46 Ohio base in England [News Item]
Ohio Scientific has established a UK marketing and sales centre in Langley, Buckinghamshire.
47 System for garages [News Item]
A new sales-analysis system for garages, Chargehand, has just been released by the Computer Room.
47 New answer to old problem [News Item]
The perennial problem of connecting new equipment to computers and word processors may be eased by a new interface unit, the Intelligent Interface Adaptor 1081, which has been announced recently by the Birmingham-based company Micro-Zeno [Micro-Xeno? spelt differently later on in article] Ltd.
47 VIC-20 with 32Kbytes will be Commodore's answer to ZX-80 [News Item]
Plans for a new computer aimed at the personal and hobby end of the market have been announced by Commodore Business Machines UK Ltd. Commodore hopes that the new computer, the VIC-20, will help it tap the demand discovered by the Science of Cambridge ZX-80.
47 Secret settlement in Apple and ITT copyright case [News Item]
Apple Computers and ITT had seemed to be set for legal action over the copyright of several products Apple was supposed to have licensed to ITT, but they have reached an agreement without disclosing its terms.
49 BBC TV series aims to remove mystery from microcomputing [News Item]
BBC television is to take a giant step into microcomputing this year, with a 10-part TV series, a book by well-known computing specialists, an associated course in Basic programming which will be run [by] the National Extension College, and a BBC Microcomputer which is expected to sell for less than 200.
49 Longer disc life [News Item]
A new aid for microcomputer users, the Fortifier from Inmac, is claimed to triple the useful life of floppy discs by reinforcing the hub of the disc with a white mylar ring which is bonded on the disc.
49 Dot-matrix printer has double ingenuity [News Item]
An ingenious dot-matrix printer, from Sanders in the US, performs ordinary printing with one pass of the head and works at dot-matrix speed or, if you wish, does typewriter quality printing with up to four passes of the head to fill in the gaps between dots.
49 Digitronix launches new printer [News Item]
Digitronix has launched a new mini-printer. The Mini Printer is a compact 32-column printer which it claims to be "the lowest-priced universal printer" at 195.
49 Wide range of applications open to Apple bar-code reader [News Item]
A bar-code reader can be interfaced to the Apple computer and has been designed to read all the common bar-code formats. The bar-code reader has been manufactured by Hewlett-Packard.
49 Software and resources [News Item]
A small Liverpool-based software consultancy, Startech, is trying to co-ordinate the activities of small software houses around the country to pool advertising resources and share local work.
50 Experimental U.S. viewdata service is based on British system [News Item]
A new viewdata system, Viewtron, closely modelled on British Telecom Prestel has started an experimental test in the States.
50 Better odds for bookies [News Item]
Bookmakers are fighting back against punters using their micros to calculate some winning combinations on racing days. The Texas Instruments Ecstasy Settler have been designed to help bookmakers calculate the odds and combinations on various bets and so stay one bet ahead of the gambling public.
50 Triton 4 offers full integration in business-micro role [News Item]
The Trivector Triton 4 microcomputer is an all-British attempt at a fully-integrated business system which includes a 22MB Winchester disc, a 12MB security tape and 64K of RAM.
50 Law has powerful armoury for combatting software piracy [News Item]
Cassette piracy has moved into the big league of offences. In a recent case which has clear implications for the microcomputer industry, a wholesaler who refused to name his source for thousands of pirated cassettes of Beatles albums was fined 10,000 for contempt of court.
50 Cassette cost to rise [News Item]
The Mechanical Copyright Protections Society, MCPS, has declined to renew amateur licences and is actively urging a levy on blank tapes.
55 New Bill will spark vigorous debate before becoming law [News Item]
British Telecommunications Bill.
56 Ozz is powerful business tool [Review]
Mike McDonald
Assessment of the records management package for the Commodore 8000 series.
62 Easy-to-use DAI micro majors in colour and sound generation [Review]
David Watt
David Watt gets to grip with the DAI micro.
66 MuPet and MTU graphics board [Review]
Nick Hampshire
A review by Nick Hampshire of two Pet add-ons.
70 Satellite Communications [Article]
Peter Laurie
Datalinks by satellite seem inexpensive and easy. Peter Laurie explains exactly what stands between us and this cheap form of communication.
76 CP/Net acts as bridge in shared information network [Article]
Thomas Rolander
Thomas Rolander looks at the development and future of this operating system.
77 With Unix, you can compute without programming [Article]
Cornelia Boldyreff
People are beginning to talk about the Unix operating system, developed by Bell Laboratories, as a possible rival to CP/M on 16-bit machines.
80 TV playwright who upstages drudgery with word processor [Article]
Martin Hayman
Martin Hayman talks to playwright Bill Hawkins and is introduced to his labour saving word-processing system, Playshape.
81 Mason restores buildings while office micro restores sanity [Article]
Cathy Lane
How a stonemason uses a micro in his work.
84 The Socrates Irony [Article]
Brian Williams
88 Monsters [Type-In Listing]
Chris Histed
92 Randomisation Test is answer to significance question [Article]
Owen Bishop
Statistics on a micro: Owen Bishop discusses the Randomisation Test used to detect significant differences.
95 Black Box III Microcomputer Solutions [Advert]
96 Sinclair ZX80 - Britain's best selling personal computer [Advert]
99 Using the Nascom Imp with the Commodore Pet [Article]
Malcolm Pritchard
Printers: Linking the Nascom Imp to the Pet
100 Routines which will strengthen programmer's resource [Article]
M.G. Walker
A variety of routines needed frequently by the programmer.
106 Co-ordinate drilling simulation [Article]
J.A. Forbes
A simulation program by J A Forbes.
113 Z-80 Zodiac [Article]
For all users of systems based on the Z-80 chip.
115 ZX-80 Line-up [Article]
Page dedicated to the ZX-80.
117 Tandy Forum [Article]
Devoted to the TRS-80 - news and user's tips, queries and comments.
119 6502 Special [Article]
The 6502 Special is dedicated to the exchange of information between 6502 users.
121 Apple Pie [Article]
Ideas, hints and comments for Apple users.
123 Pet Corner [Article]
News and user's tips, queries and comments.
125 Micromouse [Article]
Page dedicated to anything that moves.
126 Book Reviews [Review]
'Copyright: intellectual property in the information age' by E.W. Ploman and L.C. Hamilton, 'Foundations of programming through Basic' by Peter Moulton, 'TRS-80 disc and other mysteries' by H.C. Pennington, 'The incredible secret money machine' by Don Lanchester.
127 Secret of special Z-80 instructions [Article]
David Peckett
Machine code: The tenth part of David Peckett's series.
134 Buyers' Guide - Software [Article]
146 Son of Hexadecimal Kid [Article]
Richard Forsyth
Fiction. Page 5 - page thrashing.
148 Acorn Atom [Advert]

ISSN Number : 0141-5433

Creator : IPC Electrical Electronic Press

This exhibit has a reference ID of CH5508. Please quote this reference ID in any communication with the Centre for Computing History.

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