The Mighty Microcosm
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Tube Application Note
16th January 1992 Support Group Application Note Number: 004 Issue: 1 Author: Tube Application Note Applicable Related Hardware : Application BBC B Notes: BBC B+ BBC Master 128 Copyright © Acorn Computers Limited 1992 Every effort has been made to ensure that the information in this leaflet is true and correct at the time of printing. However, the products described in this leaflet are subject to continuous Support Group development and improvements and Acorn Computers Limited reserves the right to change its specifications at any time. Acorn Computers Limited cannot accept liability for any loss Acorn Computers Limited or damage arising from the use of any information or particulars in this leaflet. ACORN, Acorn House ECONET and ARCHIMEDES are trademarks of Acorn Computers Limited. Vision Park Histon Cambridge CB4 4AE Support Group Application Note No. 004, Issue 1 16th June 1992 Overview One of the BBC Microcomputer's strengths lies in its sophisticated Operating System, the MOS. This operating system has a very fast and flexible response to Interrupts, which allows the machine to take a wide range of peripherals and handle them with ease. The TUBE is a fast bus interface through which additional Co-processors (also called second processors) can be added. when a co-processor is connected to the TUBE interface, the BBC Micro continues to look after all of the I/O processing, whilst the additional co-processor now carries out the task of running the Language Application. The Co-Processor The co-processor can be based on any microprocessor chip, and can have any memory size that this chip can address. -
[email protected]]
FUN FUN FUN ’TIL DADDY TOOK THE KEYBOARD AWAY!!! • VILLAGE LIFE IN INDIA • ASSEMBLER THE ACORN CODE AND MORE!!! Summer 1997 Issue 14 £0 123> Index: Page 2 . Index. Page 3 . Editors Page. Page 4 . Village Life In India. Page 6 . Assembler programming. Page 12 . Econet - a deeper look. Page 13 . Diary of a demented hacker. Page 14 . DIGIWIDGET. Page 15 . Argonet (#2). Page 16 . Update to Acorn machine list. Page 19 . The Acorn Code Credits: Editor . Richard Murray [[email protected]] Contributors . Richard Murray. Village Life article by Ben Hartshorn. Machine List by Philip R. Banks. Acorn Code by Quintin Parker. Graphics . Richard Murray. Village Life graphics by Ben Hartshorn. You may print and/or distribute this document provided it is unaltered. The contents of this magazine are © Richard Murray for legal reasons. All copyrights and/or trademarks used are acknowledged. Opinions stated are those of the article author and do not necessarily represent the opinions of Frobnicate, BudgieSoft or Richard Murray. All reasonable care is taken in the production of this magazine, but we will not be legally liable for errors, or any loss arising from those errors. As this magazine is of a technical nature, don’t do anything you are unsure of. Reliance is placed in the contents of this magazine at the readers’ own risk. Frobnicate is managed by “Hissing Spinach”, the publishing division of BudgieSoft UK. Comments? Submissions? Questions? [email protected] Or visit our web site (as seen in Acorn User)... http://www.argonet.co.uk/users/rmurray/frobnicate/ FROBNICATE ISSUE 14 - Summer 1997 Page 3 EDITORS PAGE This issue has seen a few changes. -
Rewriting History
Remembering Repton: An alternative history of co-creativity in 1980s Britain Alison Gazzard Abstract This article explores some of the histories of player creativity in the 1980s through the inclusion of early level editors in games. Drawing on Huhtamo’s (2011) media archaeological framework of tracing “alternative histories” the article will trace the histories of level editors in games created for the BBC Micro through the case studies of Repton 3 (Superior Software 1986) and Repton Infinity (Superior Software 1987). Whereas current writing about fan practices and user-generated content by players focuses on the online possibilities of creating and sharing, this paper recognises these practices inherent in offline spaces. Using archival documents from magazine articles and reviews, the concept of player as producer and the role of user-generated content will be re-examined as a way of exploring another facet of this history. Keywords Co-creativity, level editor, microcomputing, BBC Micro, 1980s, platform ***** Introduction “In the field of game studies and within the consumer market we rarely (or are only beginning to) attend to videogames […] in terms of their aging, deterioration, obsolescence, ruinous remains, or even history…” (Guins 2014, p.5) In the opening pages of Raiford Guins’ book Game After (2014) the author notes how there are histories of games within game studies but these have been unintentional anecdotes and _____________________________________________________________ Kinephanos, ISSN 1916-985X Cultural History of Video Games Special Issue, June 2015, www.kinephanos.ca Remembering Repton: An alternative history of co-creativity in 1980s Britain not always written as the sole purpose of the text. -
Computer Architectures an Overview
Computer Architectures An Overview PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Sat, 25 Feb 2012 22:35:32 UTC Contents Articles Microarchitecture 1 x86 7 PowerPC 23 IBM POWER 33 MIPS architecture 39 SPARC 57 ARM architecture 65 DEC Alpha 80 AlphaStation 92 AlphaServer 95 Very long instruction word 103 Instruction-level parallelism 107 Explicitly parallel instruction computing 108 References Article Sources and Contributors 111 Image Sources, Licenses and Contributors 113 Article Licenses License 114 Microarchitecture 1 Microarchitecture In computer engineering, microarchitecture (sometimes abbreviated to µarch or uarch), also called computer organization, is the way a given instruction set architecture (ISA) is implemented on a processor. A given ISA may be implemented with different microarchitectures.[1] Implementations might vary due to different goals of a given design or due to shifts in technology.[2] Computer architecture is the combination of microarchitecture and instruction set design. Relation to instruction set architecture The ISA is roughly the same as the programming model of a processor as seen by an assembly language programmer or compiler writer. The ISA includes the execution model, processor registers, address and data formats among other things. The Intel Core microarchitecture microarchitecture includes the constituent parts of the processor and how these interconnect and interoperate to implement the ISA. The microarchitecture of a machine is usually represented as (more or less detailed) diagrams that describe the interconnections of the various microarchitectural elements of the machine, which may be everything from single gates and registers, to complete arithmetic logic units (ALU)s and even larger elements. -
Acorn User 1986 Covers and Contents
• BBC MICRO ELECTRON’ATOMI £1.20 EXJANUARY 1986 USB* SPECTRAIYIANIA: Zippy game for Electron and BBC LOGO SOFTWARE: Joe Telford writes awordprocessor HyfHimm,H BBC B+ PROGRAMS: Our advanced HdlilSIii t user’s guide mm BASIC AIDS: pjpifjBpia *- -* ‘‘.r? r v arwv -v v .* - The hard facts about debuggers WIN AT ELITE: Secrets of the Commander files SUPER Forget the rest, our graphics program’s best! COMPETITION Three Taxan monitors to be won COUPON OFFER Save £20 on a Kaga NLQ printer ISSUEACORNUSERNo JANUARY 1986 42 EDITOR Tony Quinn NEW USERS 48 TECHNICAL EDITOR HINTS AND TIPS: Bruce Smith Martin Phillips asks how compatible are Epson compatible printers? 53 SUBEDITOR FIRST BYTE: Julie Carman How to build up your system wisely is Tessie Revivis’ topic PRODUCTION ASSISTANT Kitty Milne BUSINESS 129 EDITORIAL SECRETARY BUSINESS NEWS: Isobel Macdonald All the latest for users of Acorn computers in business, plus half-price Mallard Basic offer PROCESS: 133 TECHNICAL ASSISTANT WHICH WORD TO David Acton Guidelines from Roger Carus on choosing a wordprocessor to fulfil your business needs 139 ART DIRECTOR BASIC CHOICES: Mike Lackersteen Edward Brown compares BBC Basic and Mallard Professional Basic, supplied with the Z80 ART EDITOR Liz Thompson EDUCATION EDUCATION NEWS: 153 ART ASSISTANT questions Paul Holmes Proposed European standard for educational micros raises many OF WORDPROCESSING: 158 ADVERTISEMENT MANAGER THE WONDER Simon Goode Chris Drage and Nick Evans look at wordprocessors to help children express themselves j SALES EXECUTIVE j ; -
Acorn User March 1983, Number Eight
ii[i: lorn hardware conversion Vinters: a layman's guide Micros and matlis Atom with BBC Basic Beeb sound the C mic ' mputers veri mes T^yT- jS Sb- ^- CONTENTS ACORN USER MARCH 1983, NUMBER EIGHT Editor 3 News 67 Atom analogue converter Tony Quinn 4 Caption competition Circuitry and software by Paul Beverley Editorial Assistant 71 BBC Basic board Milne 8 BBC update Kitty Barry Pickles provides a way round David Allen describes some Managing Editor some of its limitations Jane Fransella spin-offs from the TV series Competition Production 11 Chess: the big review 75 Simon Dally offers software for Peter Ansell John Vaux compares three programs TinaTeare solving his puzzler with a dedicated machine Marketing Manager 15 Beeb forum 79 Book reviews Paul Thompson Assembly language and Pascal Ian Birnbaum on programming Promotion Manager among this month's offerings Pal Bitton 19 Musical synthesis 83 Printers for beginners Publisher Jim McGregor and Alan Watt assess First part of this layman's guide Stanley Malcolm the Beeb's potential by George Hill Designers and Typesetters 27 DIYIightpen GMGraphics, Harrow Hill 89 Back issues and subscriptions Joe Telford shows you how in a Graphic Designer to get the ones you missed, and hardware session of Hints and Tips How Phil Kanssen those you don't want to miss in Great Britain 33 Lightpen OXO Printed 91 Letters by ET.Heron & Co. Ltd Software from Joe Telford Readers' queries and comments on Advertising Agents Lightpen multiple choice 39 everything from discs to EPROMs Computer Marketplace Ltd 41 BBC assembler 20 Orange Street 95 Official dealer list London WC2H 7ED Tony Shaw and John Ferguson Where to go for the upgrades 01-930 1612 addressing tackle indirect and support Distributed to News Trade the 45 Micros in primary schools by Magnum Distribulion Ltd. -
Acorn User Welcomes Submissions Irom Readers
ACORN BBC MICRO- ELECTRON- ATOM DECEMBER 1984 £1 TOP SCORE We pick the 20 best games of '84 ORGAN PROJECT Build your own keyboard DATABASES File on six packages LIGHTPENS Which one shines? Program entry at a stroke ' MUSIC MICRO PLEASE!! Jj V L S ECHO I is a high quality 3 octave keyboard of 37 full sized keys operating electroni- cally through gold plated contacts. The keyboard which is directly connected to the user port of the computer does not require an independent power supply unit. The ECHOSOFT Programme "Organ Master" written for either the BBC Model B' or the Commodore 64 supplied with the keyboard allows these computers to be used as real time synth- esizers with full control of the sound envelopes. The pitch and duration of the sound envelope can be changed whilst playing, and the programme allows the user to create and allocate his own sounds to four pre-defined keys. Additional programmes in the ECHOSOFT Series are in the course of preparation and will be released shortly. Other products in the range available from your LVL Dealer are our: ECHOKIT (£4.95)" External Speaker Adaptor Kit, allows your Commodore or BBC Micro- computer to have an external sound output socket allowing the ECHOSOUND Speaker amplifier to be connected. (£49.95)' - ECHOSOUND A high quality speaker amplifier with a 6 dual cone speaker and a full 6 watt output will fill your room with sound. The sound frequency control allows the tone of the sound output to be changed. Both of the above have been specifically designed to operate with the ECHO Series keyboard. -
FROBNICATE ISSUE 10 — Autumn 1996 Page 4 Point•five•Decade Welcome to a Look Back
FUN FUN FUN ’TIL DADDY TOOK THE KEYBOARD AWAY!!! • ACORN WORLD 1996 • BLIND DEVOTION • FIVE YEARS AGO Autumn 1996 Issue 10 £0 WOW! 123> 10th ISSUE Index: Page 2 . Index. Page 3 . Editors Page. Page 4 . Point five decade. Page 5 . Databurst. Page 6 . The new ratings.. Page 7 . It’s time to kick some serious butt. Page 8 . Rendezvous. Page 9 . Diary of a demented hacker. Page 10 . Accents Page 11 . Tanks advertisement Page 12 . Qu’est-ce que c’est, ça? Page 14 . AW96 Attachment. Reader Survey Credits: Editor . Richard Murray. Contributors . Richard Murray, Acorn User (archives), Helen Rayner, John Stonier, Richard Sargeant (for ART WWW JPEGs), Dane Koekoek, the participant of the newsgroup “comp.sys.acorn.misc” and John Stonier. Graphics . Richard Murray and ART. You may print and/or distribute this document provided it is unaltered. The editor can be contacted by FidoNet netmail as “Richard Murray” at 2:254/86.1 or ‘[email protected]’. Feel free to comment or send submissions. Back issues, stylesheets, notes, logos and omitted articles are available from Encina BBS — netmail editor if you are interested. The contents of this magazine are © Richard Murray for legal reasons. Full credit is given to the individual authors of each article. All copyrights and/or trademarks used are acknowledged. All opinions stated are those of the article author and do not necessarily represent the opinions of Frobnicate, BudgieSoft or Richard Murray. All reasonable care is taken in the production of this magazine, but we will not be legally liable for errors, or any loss arising from those errors. -
Acorn ABC 210/Cambridge Workstation
ACORN COMPUTERS LTD. ACW 443 SERVICE MANUAL 0420,001 Issue 1 January 1987 ACW SERVICE MANUAL Title: ACW SERVICE MANUAL Reference: 0420,001 Issue: 1 Replaces: 0.56 Applicability: Product Support Distribution: Authorised Service Agents Status: for publication Author: C.Watters, J.Wilkins and Others Date: 7 January 1987 Published by: Acorn Computers Ltd, Fulbourn Road, Cherry Hinton, Cambridge, CB1 4JN, England Within this publication the term 'BBC' is used as an abbreviation for 'British Broadcasting Corporation'. Copyright ACORN Computers Limited 1985 Neither the whole or any part of the information contained in, or the product described in, this manual may be adapted or reproduced in any material form except with the prior written approval of ACORN Computers Limited ( ACORN Computers). The product described in this manual and products for use with it, are subject to continuous development and improvement. All information of a technical nature and particulars of the product and its use (including the information and particulars in this manual) are given by ACORN Computers in good faith. However, it is acknowledged that there may be errors or omissions in this manual. A list of details of any amendments or revisions to this manual can be obtained upon request from ACORN Computers Technical Enquiries. ACORN Computers welcome comments and suggestions relating to the product and this manual. All correspondence should be addressed to:- Technical Enquiries ACORN Computers Limited Newmarket Road Cambridge CB5 8PD All maintenance and service on the product must be carried out by ACORN Computers' authorised service agents. ACORN Computers can accept no liability whatsoever for any loss or damage caused by service or maintenance by unauthorised personnel. -
Periodicals for Microcomputers: an Annotated Bibliography Second Edition
Periodicals for Microcomputers: An Annotated Bibliography Second Edition by Thomas C. Stilwell Working Paper No. 21 1985 MSU INTERNATIONAL DEVELOPMENT PAPERS Carl K. Eicher, Carl Liedholm, and Michael T. Weber Co-Editors The MSU International Development Paper series is designed to further the comparative analysis of international development activities in Africa, Latin America, Asia, and the Near East. The papers report research findings on historical, as well as contemporary, international development problems. The series includes papers on a wide range of topics, such as alternative rural development strategies; nonfarm employment and small scale industry; housing and construction; farming and marketing systems; food and nutrition policy analysis; economics of rice production in West Africa; technological change, employment, and income distribution; computer techniques for farm and marketing surveys; and farming systems research. The papers are aimed at teachers, researchers, policy makers, donor agencies, and international development practitioners. Selected papers will be translated into French, Spanish, or Arabic. Individuals and institutions in Third World countries may receive single copies free of charge. See inside back cover for a list of available papers and their prices. For more information, write to: MSU International Development Papers Department of Agricultural Economics Agriculture Hall Michigan State University East Lansing, Michigan 48824-1039 U.S.A. PERIODICALS FOR MICROCOMPUTERS: An Annotated Bibliography Second Edition* By Thomas C. Stilwell Visiting Associate Professor Department of Agricultural Economics Michigan State University 1985 *This paper is published by the Department of Agricultural Economics, Michigan State University, under the "Food Security in Africa" Cooperative Agreement DAN-1l90-A-OO-li092-00, U.S. -
Acorn ARM Evaluation System User Guide
© Copyright Acorn Computers Limited 1986 Neither the whole nor any part of the information contained in, or the product described in, this manual may be adapted or reproduced in any material form except with the prior written permission of the copyright holder. The only exceptions are as provided for by the Copyright (photocopying) Act, or for the purpose of review, or in order for the software herein to be entered into a computer for the sole use of the owner of this book. Within this publication the term 'BBC' is used as an abbreviation for 'British Broadcasting Corporation'. • The manual is provided on an 'as is' basis except for warranties described in the software licence agreement if provided. • The software and this manual are protected by Trade secret and Copyright laws. The product described in this manual is subject to continuous developments and improvements. All particulars of the product and its use (including the information in this manual) are given by Acorn Computers in good faith. There are no warranties implied or expressed including but not limited to implied warranties or merchantability or fitness for purpose and all such warranties are expressly and specifically disclaimed. In case of difficulty please contact your supplier. Every step is taken to ensure that the quality of software and documentation is as high as possible. However, it should be noted that software cannot be written to be completely free of errors. To help Acorn rectify future versions, suspected deficiencies in software and documentation, unless notified otherwise, should be notified in writing to the following address: Customer Services Department, Acorn Computers Limited, 645 Newmarket Road, Cambridge CBS 8PD ii ARM system All maintenance and service on the product must be carried out by Acorn Computers. -
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.