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Meeting Microcomputers and Bibliographic Information Systems in Latin America: Problems, Experiences and Projections
CEPAL MEETING MICROCOMPUTERS AND BIBLIOGRAPHIC INFORMATION SYSTEMS IN LATIN AMERICA: PROBLEMS, EXPERIENCES AND PROJECTIONS Santiago, Chile 24 to 27 April 1984 eee usti CANADA Economic Commission for Latin America and the Caribbean International Development Research Centre United Nations Educational, Scientific and Cultural Organization MEETING MICROCOMPUTERS 6ND BIBLIOGRAPHIC INFORMATION SYSTEMS IN LATIN AMERICAS PROBLEMS,EXPERIENCES AND PROJECTIONS Santiago,Chile 24 to 27 April 1984 Santiago de Chile LC/L.306 CL/L.20 August 1984 CONTENTS I. Introduction «.....„...t............................ II. Objectives and conclusions of the meeting ......... III. Recommendations ................................... Appendices 1. List of participants .............................. 2. List of acronyms of institutions, information networks and software packages .................... 3 o AÇ Blld El ea««ooeao«»«aas»0O««aooo*o«O0oeo0OA«D»e«e«o« 4. Abstracts of presentations ........................ 5. Features of software packages examined ............ 6. Documentation distributed ......................... 1 I. INTRODUCTION The use of microcomputer technology is rapidly expanding in developing regions. In areas such as Latin America and the Caribbean many computerized information and documentation networks are in place and many institutions are setting up their own data bases relying upon the new microcomputer equipment for their implementation. It is to be expected that this trend will have both positive and negative implications. On the positive side, -
PDP-11 Handbook
alMml digihl equipmentcorpomtion Copyright 1969 by Digital Equipment Corporation PDP is a registered trademark of Digital Equipment, Corporation The material in this handbook is for information pur- poses only and is subject to change without notice. TABLE OF CONTENTS CHAPIER 1 lNTRODUCTlOR PDP-11 SYSTEMS . .:.. 1 UNIBUS . , . 1 KAl 1 PROCESSOR . .?. 1 Priority Interrupts ,...............,..... 1 Reentrant Code . General Registers . :... 2 Instruction Set . .._........................................................ Addressing . ..~...............................................~........,...,......... z Asynchronous Operation . L 2 PACKAGJNG . ..I . 2 SOmARE ........................ .: ........................................................ 3 CHAPTER 2 SYSTEM INTRODUCTION SYSTEM DEFINITION .................................................................. 5 SYSTEM COMPONENTS ............................................................... 5 UNIBUS ................................................... .................................. 5 Single Bus ................................................................. .......... 5 Bidirectional Lines ............ .......................................... ..* .... 5 Master-Slave Relation ........................... .............................. 5 Interlocked .Communication ................................................ Dynamic Master-Slave Relation ........................................... : KAll CENTRAL PROCESSOR ...................................................... 6 General Registers -
TRS-80 Model 1 Clone Loading and Running a Version of the Computer Game Sea Dragon Here
A Tandy / RadioShack TRS-80 Model 1 Microcomputer clone. Built in 2019 using current-production parts. Glen Kleinschmidt www.glensstuff.com Jan. 2020 Introduction Having been thoroughly bitten by the old-school 8-bit computing bug and with my Commodore PET 2001 clone ( http://www.glensstuff.com/pet2001/pet2001.htm ) done and dusted, it was time to start investigating potential prospects for the next project. Released in 1977 (the year I made my own appearance), the TRS-80 Model 1 microcomputer was, for a period of time, one of the best selling, if not the best selling, personal computers for the enthusiast at home. In common with the PET 2001, a CMOS variant of the machine’s original microprocessor, even after all of these intervening years and technological progress, is still in active production and readily available. Additionally, as per the PET 2001, the machines primitive monochrome video display graphics were generated by means of straightforward TTL logic circuity rather than utilising any kind of propriety or now long-obsolete video graphics-generating integrated circuits or similar. There was one odd-ball chip thrown into the mix though – a single IC manufactured by Motorola designated the MCM6670 and rather grandiosely given the title of a “Character Generator”. This IC, not so much in the way of an actual generator, was in fact just a small mask- programmable ROM housed in an 18-pin plastic DIP. It featured 5-bit words and was presumably chosen by the hardware designer(s) of the TRS-80 for being a cheaper storage medium for the computers character set than something like the MM2716E UV-erasable PROMs that were used for storing the operating system. -
Timeline of Computer History
Timeline of Computer History By Year By Category Search AI & Robotics (55) Computers (145)(145) Graphics & Games (48) Memory & Storage (61) Networking & The Popular Culture (50) Software & Languages (60) Bell Laboratories scientist 1937 George Stibitz uses relays for a Hewlett-Packard is founded demonstration adder 1939 Hewlett and Packard in their garage workshop “Model K” Adder David Packard and Bill Hewlett found their company in a Alto, California garage. Their first product, the HP 200A A Called the “Model K” Adder because he built it on his Oscillator, rapidly became a popular piece of test equipm “Kitchen” table, this simple demonstration circuit provides for engineers. Walt Disney Pictures ordered eight of the 2 proof of concept for applying Boolean logic to the design of model to test recording equipment and speaker systems computers, resulting in construction of the relay-based Model the 12 specially equipped theatres that showed the movie I Complex Calculator in 1939. That same year in Germany, “Fantasia” in 1940. engineer Konrad Zuse built his Z2 computer, also using telephone company relays. The Complex Number Calculat 1940 Konrad Zuse finishes the Z3 (CNC) is completed Computer 1941 The Zuse Z3 Computer The Z3, an early computer built by German engineer Konrad Zuse working in complete isolation from developments elsewhere, uses 2,300 relays, performs floating point binary arithmetic, and has a 22-bit word length. The Z3 was used for aerodynamic calculations but was destroyed in a bombing raid on Berlin in late 1943. Zuse later supervised a reconstruction of the Z3 in the 1960s, which is currently on Operator at Complex Number Calculator (CNC) display at the Deutsches Museum in Munich. -
FF7W Sponsors ACR Standards Meeting and from There to the Factory It Is Just a Short Walk
HITS MOVING TO EXPANDED FACILITY by David Bunnell tentatively scheduled for March, Altairs to Albuquerque for demonstra- 1976. All Altair owners will be in- tion purposes. Prizes worth several By the end of January, 1976, it vited to attend this convention. thousand dollars will be awarded to is hoped that MITS will be in its the best demonstrations in each of new facility near the Albuquerque While formal plans for this an undetermined number of catagories. Airport. Internal construction has convention have not been finalized, (We will be looking for unique ap- been in progress for several weeks $ an outline of this event calls for a plications as well as well-developed and plans call for moving the pro- weekend of seminars and demonstra- traditional applications.) duction department before Christmas. tions. The seminars will be con- Administrative departments will move ducted by MITS engineers and software writers and will cover a wide range during January. Since the new MITS plant is of topics of interest to Altair users. located close to the Albuquerque In connection with this move, Airport, it will be very convenient there will be a combined open-house, Hobby clubs and individual Al- for out-of-town Altair users to at- World Altair Computer Convention, tair owners are asked to bring their tend the convention. Hotel reserva- tions can be made at the Albuquerque Airport Marina Hotel across the street from the terminal building, FF7W Sponsors ACR Standards Meeting and from there to the factory it is just a short walk. Users and manufacturers of audio The rest of the meeting was cassette data recording hardware at- spent primarily on discussion of mod- tended a symposium sponsored by BYTE ulation techniques. -
Hardware Components and Internal PC Connections
Technological University Dublin ARROW@TU Dublin Instructional Guides School of Multidisciplinary Technologies 2015 Computer Hardware: Hardware Components and Internal PC Connections Jerome Casey Technological University Dublin, [email protected] Follow this and additional works at: https://arrow.tudublin.ie/schmuldissoft Part of the Engineering Education Commons Recommended Citation Casey, J. (2015). Computer Hardware: Hardware Components and Internal PC Connections. Guide for undergraduate students. Technological University Dublin This Other is brought to you for free and open access by the School of Multidisciplinary Technologies at ARROW@TU Dublin. It has been accepted for inclusion in Instructional Guides by an authorized administrator of ARROW@TU Dublin. For more information, please contact [email protected], [email protected]. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License Higher Cert/Bachelor of Technology – DT036A Computer Systems Computer Hardware – Hardware Components & Internal PC Connections: You might see a specification for a PC 1 such as "containing an Intel i7 Hexa core processor - 3.46GHz, 3200MHz Bus, 384 KB L1 cache, 1.5MB L2 cache, 12 MB L3 cache, 32nm process technology; 4 gigabytes of RAM, ATX motherboard, Windows 7 Home Premium 64-bit operating system, an Intel® GMA HD graphics card, a 500 gigabytes SATA hard drive (5400rpm), and WiFi 802.11 bgn". This section aims to discuss a selection of hardware parts, outline common metrics and specifications -
Joseph Killian Oral History; 2007-01-25
Oral History of Joseph Killian Interviewed by: Bob Fraley Edited by: Dag Spicer Recorded: January 26, 2007 Mountain View, California CHM Reference number: X3879.2007 © 2007 Computer History Museum Oral History of Joseph Killian START TAPE 1 Bob Fraley: Hi. This is Bob Fraley for the Computer History Museum. We’re here today interviewing Joe Killian and this is January— Joseph Killian: 26th. Fraley: Thank you, January 26th, 2007. Joe was the chief engineer for the company IMSAI, one of the instrumental companies in creating the home computer, personal computer, type industry. And so we’ll be hearing about how the history took place from the point of view of IMSAI and how it contributed to a number of other companies over time. So, welcome, Joe. Killian: Thank you. Fraley: First, we’ve got a few just sort of routine questions. So your name is Joe Killian and where did you grow up? Killian: That’s right. Grew up all over. My dad was in the military, army engineers. So West Coast, Texas, East Coast, Paris for a while. Fraley: Quite exciting times. Killian: Well, advantages and disadvantages but I appreciate the advantages. Fraley: And so we’ve heard what your father did. Did your mother have an occupation, too? Killian: Raising eight kids was an occupation for quite awhile. Later, when we were finally out of the house, she took languages for awhile. Fraley: Oh, great. And what was your first exposure to computers? Killian: In college, Harvey Mudd. In freshman first semester they had a basic course. And that was the first time I had my hands anywhere near a computer. -
Periodical Guide for Computerists 1977
PERIODICAL GUIDE FOR COMPUTERISTS An Index of Magazine Articles for Computer Hobbyists January - December 1977 PERIODICAL GUIDE FOR COMPUTERISTS 1977 TABLE OF CONTENTS AMATEUR RADIO---------------------- 3 MICROCOMPUTERS ANALOG HARDWARE AND CIRCUITS------- 3 GENERAL------------------------- 36 APPLICATIONS, GENERAL-------------- 4 FUNDAMENTALS AND DESIGN--------- 37 ART--------------------------------5 SELECTION GUIDE----------------- 38 ASTRONOMY--------------------------6 AL TAI R 8800 & 680--------------- 38 BAR CODES--------------------------6 APPLE---------------------------39 BIORYTHMS--------------------------6 DI GIT AL GROUP------------------- 39 BIO FEEDBACK------------------------ 6 ELF & VIP ( COSMAC)-------------- 39 BOOKS AND PUBLICATIONS-------------6 HEATHKIT------------------------ 39 BUSINESS AND ACCOUNTING------------ 7 IMSAI--------------------------- 39 CALCULATORS------------------------ 8 INTERCEPT IM6100---------------- 39 CLUBS AND ORGANIZATIONS------------ 9 KIM----------------------------- 39 CLOCKS-----------------------------·9 PET----------------------------- 40 COMMUNICATION---------------------- 10 RADIO SHACK--------------------- 40 CONSTRUCTION----------------------- 10 SOL----------------------------- 40 CONTROL---------------------------- 11 SPHERE-------------------------- 40 CON VE RS ION, CODE------------------- 11 SWTPC--------------------------- 40 CONVERSION, NUMBER BASE------------ 11 WAVE MATE----------------------- 40 DEBUG------------------------------ 12 OTHER MICROCOMPUTERS------------ 41 -
JAIR Rev 1 Manual
ALTAIR 8800 / IMSAI 8080 Replacement CPU & SBC Project Josh Bensadon June 13, 2016 Toronto Canada I cannot thank everyone by name or else I may forget someone, but you know who you are and thank you for your help and friendship. Special Thanks to everyone at the N8VEM group for their endless help and wonderful ideas that broadened the scope of this project. Extra Special Thanks to Andrew Lynch for his hard work to build and distribute the boards in the N8VEM realm. Only after doing similar work did I realize how much labour is involved. Also Extra Special Thanks to John Monahan for all his hard work building www.S-100computers.com Introduction Thank you for your interest and I am pleased to present revision 1 of this project. As an electronics hobbyist, I enjoy the roots of my interest as formed by endless hours of studying Popular Electronics and Radio Electronics magazines from the 70’s and 80’s. This drove my interests to the history of personal computers. As such, I would like to include a short history of this project board. Table of Contents Introduction .......................................................................................................2 Table of Contents...............................................................................................2 Short History......................................................................................................3 Features .............................................................................................................4 8080A CPU ............................................................................................................ -
Radio-Electronics-19
THE MAGAZINE FO$'NEW IDEAS IN ELECTRONICS flompiiIIiii' 92 -PAGE lil'1aE: HARDWARE S *Games *Telecommunications *Home and Family *Dial -up Networks How they work Build the 9i111;1 New Idea DM Stat tate NE P for rs www.americanradiohistory.com Boker® Crescent" Lufkin Nicholson Plumb Weller; Wiss® Xcelite Take a good look round this ad and you'll agree that "All together" is no exaggeration. Whether you're making or mending, cutting or joining, striking, measuring or stripping, there's a Cooper tool that's just right for the job. Don't take chances on tools. Specify Cooper Plumb and get 'em right the first time! Q The Cooper Group PO Box 728 Apex NC 27502 USA Tel (919) 362-7510 Telex 579497 FREE INFORMATION CARD www.americanradiohistory.com The best 60MHz scope costs only $1100. It's from Kikusui. That's right. Only $1100 for Kikusuï s top -of -the -line 5060 model oscilloscope. And we also have four other scopes for as low as $600 in our new 5000 Series. Not only that, we're offering a two year warranty on each of them, compared to other big name companies' limited one year warranties. When it comes to performance, our 5000 Series has the edge over the Tektronix 2200 Series in lab quality, chop frequency, and trigger view. Ours also have more display modes, higher acceleration for better brightness, and sharper focus for better resolution. Each scope in our 5000 Series is crafted so that it can be used for production, field service, consumer electronics servicing, or even personal use. -
Creative Computing Magazine Is Published Bi-Monthly by Creative Computing
he #1 magazine of computer applicafa *'are raHSJS? sfife a*«uiH O K» » #-. ^ *&> iiD o «» •— "^ Ul JT © O O Ul oo >- at O- X * 3 •O »- •« ^» ^ *© c * c ir — _j «_> o t^ ^ o am z 6 %' 7 * » • • Consumer Computers Buying Guide a/ Paf/i Analysis Electronic Game Reviews Mail Label Programs Someday all terminals will be smart. 128 Functions-software controlled 82 x 16 or 92 x 22 format-plus graphics 7x12 matrix, upper/lower case letters Printer output port 50 to 38,400 baud-selectable "CHERRY" keyboard CT-82 Intelligent Terminal, assembled and tested $795.00 ppd in Cont. U.S. SOUTHWEST TECHNICAL PRODUCTS CORPORATION 219 W. RHAPSODY SAN ANTONIO, TEXAS 78216 CIRCLE 106 ON READER 3ERVICE CARD Give creative Gontpattng to a fHend for " [W*nr fiwter service - call tell free X * • -540-0445] 800-631-8112 InNJ 201 TYPE OF SUBSCRIPTION BOOKS AND MERCHANDISE Foreign Foreign Term USA Surface Air D Gift Send to me 1 2 issues D $ 15 $ 23 $ 39 24 issues D 28 44 76 Gifts cannot be gift wrapped but a 36 issues D 40 64 112 Lifetime D 300 400 600 card with your name will be sent with each order YOUR NAME AND ADDRESS : Quan Cat Descriptions Price Name Address Cittj State Zip- NAME TO APPEAR ON GIFT CARD* SEND GIFT SUBSCRIPTION TO- Name Address Citvf State. .Zip. PAYMENT INFORMATION a Cash , check or 7M.O. enclosed o Visa/BankAmericard") Card no. Books shipping charge SI 00 USA S2 00 Foreign a Master Charge J Exp. NJ Residents add 5% sales lax DPlease bill me ($100 billing fee will be added) be prepaid- TOTAL (magazines and books) Book, orders from individuals must creative computing creative computing Books. -
TV Typewriter Cookbook
TV Typewriter Cookbook by Don Lancaster SYNERGETICS SP PRESS 3860 West First Street, Thatcher, AZ 85552 USA (928) 428-4073 http://www.tinaja.com Copyright © 2010 by Synergetics Press Thatcher, Arizona 95552 THIRD EDITION FIRST PRINTING—2010 All rights reserved. Reproduction or use, without express permission of editorial or pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the use of the information contained herein. While every precaution has been taken in the preperation of this book, the publisher assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. International Standard Book Number: 1-882193-13-4 Created in the United States of America. Preface This book shows you how to put your own words and pictures on ordinary tv sets. It's also a book on cheap things that can be connected to a microprocessor to get it to do genuinely useful tasks. If you are a computer hobbyist with a home-brew lashup, a serious professional data processor concerned with low-cost small machine systems, a video games freak, or a ham working with rttv. vou will find in depth information on tv typewriter technology, which today represents the only truly low-cost ( $30 to $150) microcomputer and small-systems display interface. If you are a software specialist, we \>\-ill be showing you the hardware that makes your software work, giving you the depth of background you will need for effec tive and efficient small-systems coding. If you are teaching micro processors, you will find this book useful as a primary or supple mental text on the high school through university levels.