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Acorn Master Service Manual
British Broadcasting Corporation Master Series Microcomputer Service Manual British Broadcasting Corporation Master Series Microcomputer Service Manual Part No 0443,004 Issue 1 April 1986 M S S M W BBC ' B B C. C A C L 1986 N the whole or any part of the information contained , or the product described , this manual may be adapted or reproduced in any material form except with the prior written approval of A C L (A C). T product described in this manual and products for use with , are subject to continuous development and . A information of a technical nature and particulars of the product and its use ( including the information and particulars in this ) are given by A C in good . H, it is acknowledged that there may be errors or omissions in this . A list of details of any amendments or revisions to this manual can be obtained upon request from A C T E. A C welcome . A :- T E A C L N R C CB5 8PD A maintenance and service on the product must be carried out by A C authorised . A C can accept no liability whatsoever for any loss or damage caused by service or maintenance by unauthorised . T manual is intended only to assist the reader in the use of this , and therefore A C shall not be liable for any loss or damage whatsoever arising from the use of any information or particulars , or any error or omission , this , or any incorrect use of the . T A C . F 1986 P A C L 1 I 1 M S S M WARNING: THE COMPUTER MUST BE EARTHED IMPORTANT: T : G Y E B N B L T moulded plug must be used with the fuse and fuse carrier firmly in . -
Who Saysyou Can't Improve on Thebest?
Who says you can’t improve on the best? The Best. Better. Since the day it was launched the BBC Micro has Above is a machine which at first glance looks been garlanded with praise. very like the best micro in Britain. One early reviewer called it `the limousine of home But it’s better. computers’ and virtually every independent assessment It’s the new, enhanced, BBC Micro B+. of it since has added weight to that description. Now you can have the legendary quality and The reasons are legion. reliability of the B, plus an extra 32K memory. First, its famous adaptability and expandability. And since this extra memory is largely used on the A feature which makes the BBC Micro invaluable in screen it allows wider use of the outstanding graphics. every corner of science, industry and education. You also get an additional two expansion ROM Then there are its exceptional graphics; its speed; sockets (making four available ROM sockets in all). its reliability. In other words, room for more applications And of course its language - BBC Basic, which and languages. today is the leading language in education and widely The acclaimed Acorn disc filing system is used in business and industry. included as standard for immediate access to a fast and All in all, quite simply, the best. efficient disc storage system. There are extra utility commands for disc and ROM management-thus maximising memory availability. And remember, the Model B+, like the B, is produced by Acorn Computers who have an unbeaten record for products of outstanding quality and reliability. -
A Hardware Guide for the BBC Microcomputer
A Hardware Guide For The BBC Microcomputer. Written By: A. D. Derrick. B.Sc. D. S. Harding. B.Sc. S.D. Middleton. M. P. Smith. Edited and Published by: Wise Owl Publications Printed by Queenprint Ltd.; 64/74 Holderness Road, Hull HU9 lEQ. Telephone (0482) 224935. 1 Published in the United Kingdom by: Wise-Owl Publications, Hull Innovation Centre. Guildhall Road, Queens Gardens Kingston-upon-Hull, England. Copyright © 1983 Wise-Owl Publications. All rights reserved. No part of this publication may be produced or transmitted, in any form or by any means, without the prior written permission of the publishers. First Published 1983. The Authors would like to thank Dr. W. K. Donaldson, Ian Halstead, Instruments and Controls (Hull), Bernadette, Catherine and Julie for their assistance in the production of this book. The information contained within this book is given in good faith and is believed to be correct at the time of writing. However, neither the Authors or the Publishers take any responsibility for omissions or errors. No liability is assumed for any damages or injury whatsoever resulting from the use of information contained within this publication. All references to the BBC Microcomputer in this publication refer to the microcomputer produced for the British Broadcasting Corporation by Acorn Computers Ltd. CP/M is a registered trademark of Digital Research Corporation. It should be noted that the terms "Econet" and "Tube" are registered trademarks of Acorn Computers Ltd. The Authors thank the following manufacturers for granting permission to publish the data sheets given in Appendix 1 of this book: Hitachi Intel Corporation Motorola Ltd. -
Acorn System 1
WORN lUT fcKAcorn Computers Limited, 4a Market Hill. Cambridge CB2 3NJ, England. Telephone 0223 31.^72 ACORN TECHNICAL MANUAL Micro-Computer 200,000 Key-Board 200,00 I Introduction .., page 1 Corstruction Procedure for Kit page 2 Power Supply ... page 11 Cassette Recorder Interface page 12 Address Selection ... page 13 Micro-Computer Parts List page 1 6 Key-Board Parts List page 18 Single Board Controller Parts List page 2 0 Micro-Computer Circuit Diagram loose Key-Board Circuit Diagram loose ISSUE 1 March 1979 INTRODUCTION The Acorn Micro-Computer employing tfte 6502 Micro Processor is a versatile circuit board which may Be used in at least three ways:- 1. As a Single Board Controller with a program in the pair of 74S571 PROM's or in the EPROM socket which may be 4, 8 or 16 K with single or multiple power supplies. Two RAM/10 ICfs may be fitted giving 32 individually programmable 10 lines and 256 bytes of RAM. IK of further RAM may be fitted if requir ed. 2. As a machine code computer with an 8 digit x 7 segment HEX display, HEX keyboard and a cassette interface all on a second board, which is accessed by one of the RAM/10 I.C.'s. Programs are entered and stored in the IK of user RAM space. 3. As the Central Processing Unit for a complete computing system. All the 6502 data, address and control lines leave the board via a 32 way D.I.N. connector, which will then have access via a parallel back plane to extension memory, a Visual Display Unit, floppy disc drive, etc. -
Acorn Engineering News Issue 2
Acorn Engineering News Issue 2 CONTENTS PAGE Introduction 1 Archimedes Field Change Orders 2 Disc Compatibility and Transferring 2 Software to the Archimedes Archimedes Keyboards 3 Archimedes ROM upgrades 3 Archimedes Serial Port 4 FileStore Service 4 Econet 5 Customer Support 6 Common Problems Section 7 External Second Processor Unit - Tube ULA 7 Master 128 8 Master Compact 8 Archimedes 8 Test Equipment 9 Service Reports / Obtaining Spares 9 Acorn Warranty - reminder 10 Repair of Hardware - external agencies 10 Connecting a 5.25 inch Disc Drive 14 to a Master Compact Service Capability of Dealers / ASCs 15 Unofficial variations - warranty void 15 View family 15 Upgrades 16 Dealer / ASC Servicing Questionnaire 17 Appendices Archimedes User Registration form Compact Drive cable diagram FileStore E01 Circuit Diagram ACORN ENGINEERING NEWS REF. 9990031 DECEMBER 1987 ALL ENQUIRIES TO: Acorn Computers Limited Telephone (0223) 214411 Cambridge Technopark Telex 81152 ACNNMR G 645 Newmarket Road Fax (0223) 214382 Cambridge CB5 8PB, England Viewdata (0223) 243642 Customer Services Department Acorn Computers Limited Cambridge Technopark 645 Newmarket Road Cambridge CB5 8PB Telephone 0223 214411 Telex 81152 ACNNMR G Fax No 0223 214382 Direct dealer / ASC lines Support 0223 215452 Engineering / Returns 0223 215454 Dear Colleague Welcome to an edition of Engineering News. This is the last version that you will receive on paper, as we will be putting future Engineering Information on SID - the Support Information Database. This should allow us to be considerably more flexible with Engineering Information, as well as the ability to include test programs and the like in Telesoftware. As well as just Engineering information, I have included some more general support information on other areas too - so you may wish to show this document around your organisation. -
Acorn Computers Limited - Press Release
ACORN COMPUTERS LIMITED - PRESS RELEASE ACORN COMPUTERS ANNOUNCE THE AVAILABILITY OF AN EVALUATION SYSTEM FOR THEIR SINGLE CHIP, 32-BIT REDUCED INSTRUCTION SET COMPUTER - THE ARM CAMBRIDGE, UK. — 7/7/86 — Acorn Computers Ltd are making available an evaluation system for their RISC architecture CPU, the Acorn RISC Machine (ARM), first announced in August last year. This marks the first opportunity for independent developers and researchers to gain experience with this very high performance processor. Acorn Computers is producing two versions of the evaluation system, one to be used with their BBC and Master Series micros, the other to be used with IBM PC's, AT's and compatibles. The evaluation systems combine a hardware system with a comprehensive kit of software including five high level languages, a powerful Assembler and associated software tools. The ARM's high performance processing capability is essentially derived from its ability to use a high memory band-width and its applicability is increased through its good interrupt handling. With prices being considerably less than other processors of equivalent power, the ARM offers exceptional price performance for a wide range of applications. Typical applications include communications, microcomputers, expert systems and such embedded systems as laser printer controllers, network controllers and graphics engines. Acorn recently reached an agreement, with VLSI Technology Incorporated of Phoenix, Arizona, to manufacture and market the chip set consisting of the ARM and a series of associated controller chips. This agreement includes the establishment of the provision for a second source for the chip set. The development of the ARM demonstrates Acorn's continued commitment to maintaining its renowned high technology expertise. -
Connection of Monitors to Acorn Computers
24th May 1994 Support Group Application Note Number: 249 Issue: 1.13 Author: DW Connection of Monitors to Acorn Computers This Application Note describes how various monitors may be connected to the Acorn family of machines, and how RISC OS machines may be suitably configured to use them. Information concerning MonitorTypes 4 and 5 (VGA and SVGA) are applicable to RISC OS 3.1 only. Applicable Related Hardware : Application BBC Model B Notes: 226 VIDC Screen Mode BBC Master Series Parameters Archimedes 300, 400, 540 247 Sharing Multiscan A3000 Monitors and TV Displays on a R140, R200 series Single RISC OS Computer A3010 A3020 A4000 A5000 Copyright © 1994 Acorn Computers Limited Every effort has been made to ensure that the information in this leaflet is true and correct at Support Group the time of printing. However, the products described in this leaflet are subject to continuous development and improvements and Acorn Computers Limited reserves the right to change Acorn Computers Limited its specifications at any time. Acorn Computers Limited cannot accept liability for any loss Acorn House or damage arising from the use of any information or particulars in this leaflet. ACORN, ECONET and ARCHIMEDES are trademarks of Acorn Computers Limited. Vision Park Histon, Cambridge CB4 4AE Support Group Application Note No. 249, Issue 1.13 24th May 1994 Video signals and Standards Acorn RISC OS 3 systems are capable of connecting to displays conformant with several industry-standard video specifications; each of these distinguished by the value of the MonitorType variable held in battery- backed memory. The value assigned to this variable may be examined from the command line using *STATUS, and changed using *CONFIGURE MONITORTYPE <number>. -
Lessons from Discarded Computer Architectures Andrew E
Lessons from Discarded Computer Architectures Andrew E. Fluck To cite this version: Andrew E. Fluck. Lessons from Discarded Computer Architectures. IFIP WG 9.7 International Conference on History of Computing (HC) / Held as Part of World Computer Congress (WCC), Sep 2010, Brisbane, Australia. pp.198-205, 10.1007/978-3-642-15199-6_20. hal-01054654 HAL Id: hal-01054654 https://hal.inria.fr/hal-01054654 Submitted on 7 Aug 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution| 4.0 International License Lessons from Discarded Computer Architectures Andrew E. Fluck University of Tasmania Locked Bag 1307, Launceston, Tasmania, 7250, AUSTRALIA [email protected] Abstract: The BBC microcomputer was one of several nationally produced which were superseded by the International Business Machines (IBM) Personal Computer (PC). This reflected the results of both an international market competition and rivalry between different US processor manufacturers. Along with the hardware, valuable software and supporting educational ideologies were discarded. As we make choices about technological innovation, to what degree are we selecting potential efficacy or responding to marketing hype? Keywords: BBC microcomputer, IBM Personal Computer, Apple II, computer hardware, operating systems 1 Introduction The BBC microcomputer was an 8-bit machine based on the Motorola 6502 processor. -
BBC Performance Against Public Commitments 2011/12
PERFORMANCE AGAINST PUBLIC COMMITMENTS 2011/12 Contents S1 Ofcom and BBC Trust responsibilities S2 Ofcom Tier 2 quotas S3 Performance against Statements of Programme Policy 2011/12 S20 Access services S21 Window of Creative Competition (WoCC) 1 – OFCOM AND BBC TRUST’S RESPONSIBILITIES Under the terms of the BBC’s Royal Charter, the Agreement, and the Communications Act 2003 (‘the Act’), some areas of the BBC’s activity are regulated by Ofcom, some by the BBC Trust, and some by both together. A Memorandum of Understanding was agreed in March 2007 to clarify the respective roles and responsibilities of the Trust and Ofcom, and the key points are summarised below: Programme standards The BBC Executive is accountable to the BBC Trust for accuracy and impartiality of content; Ofcom sets certain programme standards. Both have duties to consider complaints. Quotas and codes News and current affairs The BBC Trust sets quotas for news and current affairs on BBC One and BBC Two, consulting Ofcom (for agreement in some cases) before imposing these requirements. Original productions The BBC Executive and Ofcom must agree an appropriate proportion of programming to be original productions. Nations and Regions programming The BBC Trust sets quotas for programmes from the Nations and Regions, consulting Ofcom (for agreement in some cases) before imposing these requirements. Programmes made outside London The BBC Executive and Ofcom must agree a suitable proportion of programming to be made in the UK outside the M25 area. Independent production The BBC Trust requires the BBC to follow a code of practice for commissioning independent productions, and reviews delivery against the Window of Creative Competition (WoCC), within which in-house and independent producers can compete for commissions. -
OF the 1980S
THAT MADE THE HOME COMPUTER REVOLUTION OF THE 1980s 23 THAT MADE THE HOME COMPUTER REVOLUTION OF THE 1980s First published in 2021 by Raspberry Pi Trading Ltd, Maurice Wilkes Building, St. John’s Innovation Park, Cowley Road, Cambridge, CB4 0DS Publishing Director Editors Russell Barnes Phil King, Simon Brew Sub Editor Design Nicola King Critical Media Illustrations CEO Sam Alder with Brian O Halloran Eben Upton ISBN 978-1-912047-90-1 The publisher, and contributors accept no responsibility in respect of any omissions or errors relating to goods, products or services referred to or advertised in this book. Except where otherwise noted, the content of this book is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0). Contents Introduction. 6 Research Machines 380Z. 8 Commodore PET 2001. 18 Apple II. 36 Sinclair ZX80 and ZX81. 46 Commodore VIC-20 . 60 IBM Personal Computer (5150). 78 BBC Micro . 90 Sinclair ZX Spectrum. 114 Dragon 32. 138 Commodore 64. 150 Acorn Electron . .166 Apple Macintosh . .176 Amstrad CPC 464. 194 Sinclair QL . .210 Atari 520ST. 222 Commodore Amiga. 234 Amstrad PCW 8256. 256 Acorn Archimedes . .268 Epilogue: Whatever happened to the British PC? . .280 Acknowledgements . 281 Further reading, further viewing, and forums. 283 Index . .286 The chapters are arranged in order of each computer’s availability in the UK, as reflected by each model’s date of review in Personal Computer World magazine. Introduction The 1980s was, categorically, the best decade ever. Not just because it gave us Duran Duran and E.T., not even because of the Sony Walkman. -
News of SI Camileon Project Cracks Twentieth-Century ● Our Mission ''Domesday Book''
About SI: News CONTACT SITE MAP INTRANET About SI Applying MSI Degree Ph.D. People Research Careers Fieldwork Student Life Home > About SI > News > Article More News Articles >> ● ABOUT SI News of SI CAMiLEON project cracks twentieth-century ● Our Mission ''Domesday book'' ● Diversity at SI (Dec 2002) The Domesday Book, a ● News of SI 1086 inventory of Creative Archiving at ● SI in the Media English life composed Michigan and Leeds: by Norman monks, can ● Events Calendar be easily read by Emulating the Old on the New ● Rankings anyone who can understand the Old ● SI's Partners English. The 1986 BBC Domesday project, a digital ● Giving to SI archive of contemporary British life created to mark the 900th anniversary of the original Domesday ● Technology Book, became essentially unreadable within a few years. CAMiLEON project researchers at SI and the ● Libraries University of Leeds in the U.K. have now developed ● Facilities a method for decoding this compendium of recent British history. ● Getting to SI ● Contact Us The BBC Domesday project includes contributions from more than one million people across the U.K., including thousands of contributions from school children and classrooms. This massive archive was encoded -- primarily in digital form -- on two long- ● Future Students lasting videodiscs. Because of their data content, ● Alumni the Domesday discs could be used only with a ● Employers specially designed model of the Philips LaserVision ● Current MSI Students player controlled by either a BBC Master Microcomputer or a Research Machines Nimbus. ● Current Ph.D. Students These computers are now obsolete. ● Faculty and Staff CAMiLEON researchers have developed software that emulates the old BBC microcomputer and videodisc reader, making the discs' data once again accessible. -
Developments in Computer and Information Technology Education and Training and Their Implications for the Youth Training Scheme
DOCUMENT RESUME ED 301 708 CE 051 482 AUTHOR Brown, Alan; Mills, Julian TITLE Developments in Computer and Information Technology Education and Training and Their Implications for the Youth Training Scheme. Publication No. 1. INSTITUTION Centre for Research in Youth and Further Education, Surrey (England).; Roehampcon Inst. of Higher Education (England).; Q.xrey Univ. (England). SPONS AGENCY Manpower Services Commission, London (England). PUB DATE 87 NOTE 55p.; For related documents, see CE 051 483-485. PUB TYPE Reports - Research/Technical (143) EDRS PRICE MF01/PC03 Plus Postage. DESCRIPTORS *Computer Science; *Curriculum Development; Educational Policy; Educational Practices; Electronics; Foreign Ccuntries; *Information Science; Microcomputers; Postsecondary Education; Prevocational Education; *Program Content; School Districts; Secondary Education; Student Certification; *Technical Education; Vocational Education IDENTIFIERS *United Kingdom; *Youth Training Scheme ABSTRACT A study examined recent developments in computer and information technology (CIT) training in the United Kingdom to determine those elements of CIT training that could be incorporated into the Youth Training Scheme (YTS). Information for the study was obtained from national and regional officials of the Microelectronics Education Programme (1981-86), teachers, inservice trainers, and other interested parties. Although widely acknowledged as being innovative, the microelectronics program's impact was determined to be very patchy from the standpoint of teaching and learning strategies used in the schools, and it failed to provide adequate support for teachers involved in the program. Scotland, on the other hand, appears to have initiated a more promising method of CIT. Scottish schools emphasize using computers in ordinary school subjects versus England's decision to confine computers to computer studies departments.