British Telecom Small Business Computer Type A/1A/2B

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The British Telecom Small Business Computer Type A/1A/2B - System 101 (July 1982)
 
Processor consists of a Z80 CPU card for the IEEE S-100 Standard Bus which was manufactured by Godbout Electronics, 64K Byte RAM card and a 4 port serial I/O card.  The Video Card is a VDB 8024 type. The Keyboard Unit is the AKL SE 82-174-01 type.
 
The storage Unit 2B consists of two "Flexible *" Disk Drives" with associated power supply. Control is by a Tarbell Disk Control Card connected to the S-100 bus with a 50 way cable.
 
The monochrome monitor was manufactured by Digivision of Leicester.
 
This is complete with software and manuals.
Model No: A/1A/2B
Serial No: 038
 
Disk Drive Unit:Model No: --/--/23/--
Serial No: 037

Manufacturer: British Telecom
Date: June 1982



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British Telecom Small Business Computer Type A/1A/2B Manuals:

Item Manufacturer Date
Hollerith Senior Rolling Total Tabulator C.R.S. Mechanical Service Manual The British Tabulating Machine Company Ltd Jul 1951
ICT Type 550/2 Calculator Operator's Manual ICT May 1962
ICT Type 550/2 Electronic Calculator Field Engineering Manual ICT 1964
C.E. 60 Computer User's Manual Computer Engineering Ltd 30 Mar 1966
Elliott 903 SIR Programmer's Guide Elliott 1969
IBM - Systems - OS Conversion Guide from QTAM or BTAM to TCAM IBM Apr 1971
IBM System/360 Operating System: Programmers Guide to Debugging IBM Aug 1974
Acorn 6809 User's Manual Acorn Computers Ltd Feb 1980
IBM - Network Problem Determination Application: General Information IBM Feb 1980
IBM 3850 Mass Storage System (MSS) Introduction and Preinstallation Planning IBM Apr 1980
IBM - Network Problem Determination Application: User Action Guide IBM Jul 1980
IBM - Program Product - Information_MVS - User's Guide - First Edition IBM Dec 1980
Amber 2400 Dot Matrix Printer User Manual Amber Controls Ltd 1982
OS/VS2 System Logic Library Volume 11 IBM Dec 1982
Artemis - System Managers Manual - Small Systems Metier Management Systems Ltd Jul 1983
IBM 3081, 3083, 3084, and 4381 Configuration - Support Service - Processor Commands IBM Aug 1984
IBM - Distributed and Office Systems Support - Custom-Built Installation Process Offering Experience With Customer Information Control System And System Modification Program/Extended IBM Apr 1985
Clustan - Estimation of Missing Values and Diagnosis Using Hierarchical Classifications Physica-Verlag, Vienna, Austria May 1985
BT Merlin User Guide M2105 Messaging Terminal BT 2 Jun 1985
BBC Master Series Reference Manual Part Two (Signed) Acorn Computers Limited Jan 1986
Burroughs BTOS Sort/Merge Operations Reference Manual Volume 1 Jan 1986
Burroughs BTOS Reference Manual Volume 2 Feb 1986
Burroughs BTOS Reference Manual Volume 1 Feb 1986
BBC Master Series Reference Manual Part One (Signed) Acorn Computers Limited Mar 1986
MVS/Extended Architecture System Logic Library: PC/AUTH Service Routines IBM Jun 1987
IBM - MVS-Extended Architecture System Programming Library - SYS1 .LOGREC Error Recording IBM Jun 1987
International Technical Suport Centers Bimodal CMS for VM/XA Systems IBM Jun 1987
MVS/Extended Architecture Data Facility Product Version 2: Diagnosis Reference - Version 2 Release 3.0 IBM Jun 1987
IBM - Network Program Products - General Information - MVS-VM-VSE IBM Jan 1988
Digital - VMS Monitor Utility Manual Digital Apr 1988
IBM - Data Facility - Hierarchical Storage Manager - Version 2 Release 4.0 - System Programmer's Guide IBM Dec 1988
MVS/Extended Architecture System Programming Library: System Macros and Facilities Volume 2 IBM Sep 1989
IBM - MVS - Extended Architecture System Logic Library - Event Notification Facility IBM Sep 1989
IBM - NetView - Customisation Guide - Release 3 IBM Aug 1990
IRIX System Administration Student Handbook Siliocan Gra[phics May 1995

British Telecom Small Business Computer Type A/1A/2B Articles:

Item Manufacturer Date
Barry Hooper, Programmer Shell Australia Unknown
Memories - A Personal History of a Cambridge Concern Unknown
George Drummond: GPO (BT) Reminiscence Unknown
David Holdsworth: Reminiscence Unknown
Emil Gottwald: Reminisence LEO Unknown
Colin Hobson: Reminiscence LEO Unknown
Nigel Furness: Reminiscence Unknown
Memories - The Novachord and the father of ENIAC by Dan Wilson Unknown
Memories - Notes by a physicist who dabbled with computers - John Yates Unknown
Memories - Computers in the Dark Ages (Apricot Computers) Unknown
Memories - UK101 and using Computers in the RAF Unknown
Visit to the Computer History Centre by Matthew Tinker aged 9 Unknown
Electronic Clerk Takes Over 27 Sep 1954
GPO Origins of Billing Computer System 1957
A Research Center for Augmenting Human Intellect 9 Dec 1968
Memories - Working with the Commodore PET and the BBC Micro by Dr Geoff Luxford 1979
Memories - Me and My Toys Jun 2009
Memories - Some Jottings From My Past R.P. CARTLEDGE 27 Jun 2012
Memories - Recollections of a Typewriter Mechanic John Holman 22 Aug 2012
Memories - Early Computing with the Science of Cambridge MK14 and the SIB (Small Is Beautiful) Computer Mar 2013
Memories - Getting Started with the Texas Instruments TI-99/4A by Stephen Shaw 7 Oct 2013
U3A: Remembering LEO 2014
Memories - Operating the Cadbury Orion computer in the mid-1960s Jul 2017
The LEO Computers Society Heritage Project Oct 2017
LEO, Lyons Electronic Office: The World’s first Business Computer Nov 2017
John’s (John Parry) Story 2 May 2018
Peter Guest: Reminiscence written by Margaret Guest 2021

Magazines RELATED to British Telecom Small Business Computer Type A/1A/2B in our Library

Item Manufacturer Date
Byte April 1988 Unknown
The Home Computer Course - Issue 5 Orbis 1983
The Home Computer Course - Issue 6 Orbis 1983
The Home Computer Course - Issue 7 Orbis 1983
The Home Computer Course - Issue 8 Orbis 1983
The Home Computer Course - Issue 9 Orbis 1983
The Home Computer Course - Issue 10 Orbis 1983
The Home Computer Course - Issue 12 Orbis 1983
The Home Computer Course - Issue 14 Orbis 1983
The Home Computer Course - Issue 17 Orbis 1983
The Home Computer Course - Issue 20 Orbis 1983
The Home Computer Course - Issue 21 Orbis 1983
The Home Computer Course - Introductory Booklet Orbis 1983
Home Computer Course - Dictionary of Computing Terms Orbis 1983
The Home Computer Course - Issue 4 (A) Orbis 1983
The Home Computer Course - Issues 1 and 2 Orbis 1983
The Home Computer Course - Issue 19 Orbis 1983
The Home Computer Course - Issue 18 Orbis 1983
The Home Computer Course - Issue 16 Orbis 1983
The Home Computer Course - Issue 15 Orbis 1983
The Home Computer Course - Issue 13 Orbis 1983
The Home Computer Course - Issue 11 Orbis 1983
The Home Computer Course - Issue 3 Orbis 1983
The Home Computer Course - Issue 22 Orbis 1984
The Home Computer Course - Issue 24 Orbis 1984
The Home Computer Course - Completion Certificate Orbis 1984
The Home Computer Course - Issue 23 Orbis 1984
Acorn User - November 1984 1 Nov 1984
The Home Computer Course - File Directory Orbis 1985
The Home Computer Course - Issue 4 (B) Orbis 1985
Dragon User - January 1985 Jan 1985
Personal Computer World - May 1987 1 May 1987
Atari User - June 1987 Jun 1987
Dragon User - July 1988 1988
Byte November 1988 Nov 1988
PC Business World 24 January 1989 24 Jan 1989
Mean Machines Sega - April 1994 EMAP Apr 1994
Mean Machines Sega - May 1994 EMAP May 1994
Personal Computer World - April 1995 Apr 1995
Personal Computer World - March 1997 Mar 1997
Personal Computer World - October 1997 1 Oct 1997
Official Nintendo Magazine - June 1998 EMAP Jun 1998
Byte June 1988 Jun 1998
Acorn User - July 1999 1999
Computer and Video Games - May 1999 emap active 1 May 1999
Acorn User - August 2002 2002
Acorn User - January 1985 1 Apr 2009
Acorn User - July 1989 27 May 2009
Acorn User - June 1999 22 Jul 2009
Acorn User - September 1999 22 Jul 2009
Edge - Issue 204 - August 2009 Future Publishing Aug 2009

Other Systems Related To British Telecom Small Business Computer Type A/1A/2B:

Item Manufacturer Date
Acorn - BT Merlin M2105 Acorn Computers / British Telecom 13th May 1986
British Telecom M5210 Series PC British Telecom 1988

This exhibit has a reference ID of CH3313. Please quote this reference ID in any communication with the Centre for Computing History.

 

British Telecom Small Business Computer Type A/1A/2B

  Software Archive   [2]
  Peripherals   [2]

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Articles

George Drummond: GPO (BT) Reminiscence

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