DEC Rainbow 100B

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The DEC Rainbow 100B was the second model in DEC's Rainbow line of computers, following the 100A.

Like the 100A it has a dual-processor configuration, Z80 for 8-bit CP/M programs and the Intel 8088 for MS-DOS-based programs. These CPUs operate from and transfer data through a shared block of 62KB of RAM. The Rainbow's Operating System was able to detect which processor was required by examining the program diskette that was used.

There were a number of changes to the 100B. It was able to boot from a hard disk, known as the Winchester drive, due to updated firmware. This hard disk drive was optional. The machine came with 128KB of memory but had the option to expand to up to 892KB with the addition of a special adaptor board.

It was unsuccessful in the marketplace, having to compete with established brands and their IBM PC-compatible machines. CP/M compatibility was also becoming less important by this time.

The Rainbow 100+ which followed the 100B was identical to the B apart from having a hard drive installed in the computer. A 100B could therefore be upgraded to a 100+, and a 100+ was included in the upgrade package.

Manufacturer: Digital Equipment Corporation
Date: 1982



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DEC Rainbow 100B Manuals:

Item Manufacturer Date
Sumlock Calculator Tables No. 1-15 Sumlock Unknown
DEC Rainbow MS-DOS Version 2.11 Documentation DEC Unknown
Helios C40 Distributed Software Limited Unknown
DECmate - Using the LN03 Digital Equipment Corporation Unknown
Brandon Applied Systems - Corporate Data Base Guide Brandon Applied Systems Unknown
Brandon Computer Services - Examples of Management Decision Making Processes Brandon Computer Systems Unknown
Acorn Risc PC Welcome Guide Unknown
Rank Xerox 3700 - Distributed Electronic Printing System - Government Branch - Introduction Rank Xerox Unknown
Mentec - RSTS/E RMS-11: An introduction Mentec Unknown
Hollerith Universal Carriage Diagram B164/18 Hollerith Dec 1949
IBM 1401 Data Processing System Reference Manual October 1960 IBM Oct 1960
Features of the Ferranti Atlas Computer Ferranti May 1961
Ferranti Atlas Provisional Extracode Functions Ferranti Sep 1961
Ferranti Atlas Basic Language (ABL) Ferranti 1 Jun 1962
Ferranti Atlas Magnetic Tape Provisional Instruction Code Mk.4 Ferranti 1 Jun 1962
Ferranti Atlas Provisional Programming Manual Ferranti Jan 1963
Algol 60 Programming Course Notes algol 1965
Introduction to Atlas Autocode by J S Rohl 1965
Honeywell EDP Series 200 Software Manual: Fortran Compiler D Honeywell 1966
English Electric Computers System Manuals 4.50 and 4.70 English Electric 1966
Anita Mark 9 Documents and Diagrams Bell 1966
Anita Mark 12 Documents and Diagrams Bell 1966
Programmed Buffered Display Type 338 Digital Equipment Corporation Apr 1966
Sumlock Comptometer - Calculator Charts Sumlock Comptometer Limited 1967
Honeywell EDP Series 200 Software Manual: COBOL Compilers D & H Honeywell 1967
IBM System 360 Assembler Language Coding (Standard & Decimal Instructuions) IBM Mar 1967
Honeywell: Wordcom Instructional Programming Language Reference Manual 1968
Burroughs B6500 Reference Card Burroughs 1969
Modular One User Manual CTL 1969
Data Base Design Techniques Conference, September 1969 - Delegate List Brandon Computer Systems 9 Dec 1969
IBM - A Programmer's Introduction to IBM System-360 Assembler Language IBM Aug 1970
DEC System 10 Bliss-10 Programmers Reference Manual Digiital Feb 1974
Systime RSTS/E Pocket Guide Systime 1976
PDP-11 Qvec Device Handler Digital Aug 1976
Digital RSX-11M Pocket Reference Digital Dec 1976
Digital VAX11 Software Handbook Digital Equipment Corporation 1977
TI Programmable 57 Introduction to Programming 1977
Texas Instruments - Total Integration Texas Instruments 1977
The Electric Pencil for TRS-80 Operator's Manual Small System Software 1978
Apple II: Applesoft Basic Programming Reference Manual Apple 1978
UCCL Cambridge 370/165 Users Guide UCCL Dec 1978
Digital Microcomputer Processor Handbook 1979 Digital Equipment Corporation 1979
TSA User Guide - Extension of CMF The European Software Company Dec 1979
IBM 3270 Information Display System 3274 Control Unit Description and Programmer's Guide IBM Nov 1980
IBM - Program Product - Information_System - Messages and Codes - program Number 5735-OZS - Release 2 IBM Dec 1980
Rotring NC-scriber Operating Instructions Rotring Dec 1980
PDP-11 DEC Datasystem 1981
Apple II: The DOS Manual (DOS 3.3) Apple 1981
IBM - Program product - Information_System - Installation and Customization - Second Edition IBM Jul 1981
Mentec - BASIC-PLUS Language Manual Mentec Dec 1981
Encoder - 6502 Assembler/Disassembler Premier Publications 1982
Digital DEC Professional 300 Series Manual volume 5 Digital Dec 1982
Digital DEC Professional 300 Series Manual volume 1 Digital Jan 1983
Mentec - RSTS/E RMS-11 Users Guide Mentec Mar 1983
Mentec - RSTS/E RMS-11 Utilities Mentec Mar 1983
Programmed Cryptographic Facility General Information Manual IBM Jul 1983
Amdahl Introductory Pack - University of Manchester Regional Computer Centre Amdahl 28 Aug 1984
IBM - Network Control Program Migration IBM Dec 1984
Cray X-MP and Cray-1 Computer Systems - Library Reference Manual SR-0014 Cray Research Inc Dec 1984
Cray X-MP & Cray-1 -Computer Systems IBM MVS Station Internal Reference Manual SM-0048 Cray Research Inc Dec 1984
IBM - Virtual Machine/System Product - Group Control System - Macro Reference - Release 4 IBM Dec 1984
Cray-OS Version 1 Reference Manual Cray Research Inc Dec 1984
IBM - MVS/370 - Loader Logic IBM 1985
IBM - MVS/370 - BDAM Logic IBM 1985
IBM - MVS/370 - Access Method Services Logic Volume 2 IBM 1985
MVS Diagnostic Techniques IBM Jul 1985
Cray X-MP & Cray-1 - DEC VAX/VMS Station - Internal Reference Manual Cray Research Inc Oct 1985
IBM - TSO Extensions - CLISTS: Implementation and Reference IBM Dec 1985
IBM - MVS/370 - CVOL Processor Logic IBM Dec 1985
IBM - MVS/370 - Checkpoint/Restart Supervisor Call Logic IBM Dec 1985
Logitech Modula-2 Software Development System Logitech 1986
IBM - Virtual Machine/System Product - Operator's Guide - Release 5 IBM Dec 1986
IBM VM/System Product - CMS Primer Release 5 IBM Dec 1986
INMOS Technical Note 9: Designing with the IMS T414 and IMS T800 memory interfaces INMOS Apr 1987
IBM - Introducing TSO Extensions release 4 IBM May 1987
IBM - System Display and Search Facility General Information IBM May 1987
Cray X-MP - DEC VAX/VMS Station - VAX Supercomputer Gateway For Cray X-MP Computer Systems Cray Research Inc Jun 1987
Assembler H Version 2 - General Information - Release 1 IBM Dec 1987
Acorn RISC iX X.desktop Guide Acorn 1988
Acorn R140 Operations Guide Acorn 1988
DIGITAL - VMS DECnet Test Sender/DECnet Test Receiver Utility Manual DIGITAL Apr 1988
DIGITAL - VMS Network Control Program Manual DIGITAL Apr 1988
Cray - DEC VAX / VMS Station Administrators Manual Cray Research Inc Jul 1988
IBM C/370 General Information IBM Sep 1988
IBM - Data Facility - Hierarchical Storage Manager - Version 2 Release 4.0 - System Programmer's Guide IBM Dec 1988
IBM - 3745 Communications Controller - Original Equipment Manufacturer's Information IBM Dec 1988
Acorn R140 RISC Ix User Guide Acorn Dec 1988
IBM - Data Facility - Hiearchical Storage Manager - Version 2 Release 4.0 - Messages IBM Dec 1988
IBM - VTAM - Enhancements - Version 3 Release 2 - Version3 for VM/9370 IBM Dec 1988
Acorn RISC OS Programmer's Reference Manuals Volumes 1-4 Acorn 1989
An Analogue to Digital Converter for the Archimedes Computers User Guide Wild Vision May 1989
IBM - Data Facility Hierarchical Storage Manager Version 2 Release 5.0 Planning Guide IBM Jul 1989
Digital - VMS Version 5.3 Upgrades and Installation Procedures Digital Oct 1989
IBM - Planning and Reference for NetView - Network Control Program - Virtual Telecommunications Access Method IBM Dec 1989
Cray - DEC VAX / VMS Station 4.02 Documentation Update Cray Research Inc Dec 1989
Mentec - RSTS/E Maintenance Notebook Mentec Aug 1990
VAX Architecture Reference Manual Digital 1991
SunOS 5.1 Reference Manual - Section 4: File Formats Sun Microsystems 1992
Mentec - RSTS/E Documentation Directory Mentec Sep 1992
Mentec - RSTS/E Quick Reference Guide Mentec Sep 1992
Mentec - RSTS-E System Directives Manual (Includes Update Notice No. 1) Mentec Sep 1992
Mentec - RSTS/E System Installation and Update Guide Mentec Sep 1992
Mentec - RSTS/E Version 10.1 Internals and Data Structures Manual Mentec Sep 1992
Psion Series 3a User Guide Psion Dec 1994
Macro System VLab Motion MovieShop 2.1 Manual Macro System Mar 1995
ULTRIX and UWS Release Notes Version 4.5 Digital Dec 1995
ULTRIX CD-ROM Distribution Service - February 1996 Digital Feb 1996
IBM - Data Facility - Hiearchical Storage Manager - Version 2 Release 4.0 - User's Guide IBM Dec 1998

DEC Rainbow 100B Articles:

Item Manufacturer Date
Mike Cowlard: Reminiscences of a LEO Operator Unknown
Barry Hooper, Programmer Shell Australia Unknown
John Aeberhard: Reminiscences around LEO Unknown
Memories - A Personal History of a Cambridge Concern Unknown
Ray Dawson: Reminiscences Unknown
George Drummond: GPO (BT) Reminiscence Unknown
John Forbes: Reminiscences Unknown
Gloria Guy: Reminiscence Unknown
Ray Smith: Reminiscences of a LEO III Operator and Intercode Programmer Unknown
Anthony Robin Davies: Commentary LEO Unknown
Mike Tyzack's story with LEO computers Unknown
John Goodwin: Reminiscence LEO Unknown
Norman Witkin: Memoir of working with LEO in South Africa Unknown
Chris Reynolds: Memoir LEO Unknown
Copy Protection Systems For Home Micros Unknown
Intriguing History Unknown
Nigel Furness: Reminiscence Unknown
I Love ICL Unknown
Matt Taub: Reminiscence Unknown
Andrew Murison: Reminiscence Unknown
John Oates: Commentary Unknown
Chris Parker: Comment Unknown
Tom Carrington: the real story of II/11 Unknown
Memories - Tesco and the IBM PC - 1982 Unknown
Memories - Notes by a physicist who dabbled with computers - John Yates Unknown
Memories - Commodore Plus/4 Unknown
Memories - Computers in the Dark Ages (Apricot Computers) Unknown
Memories - The Tatung Einstein (2) Unknown
Memories - Memories of a Programmer Unknown
Memories - UK101 and using Computers in the RAF Unknown
Memories - Using the Psion Organizer 1992 to 2004 Unknown
Memories - The origins of the commercial use of the spreadsheet in accounting? Unknown
Seymour Cray 7 Dec 1942
Who Else Used LEOs? 1951
How Many LEOs? 1951
Operating and Engineering Experience Gained with LEO 1954
Diminishing Returns 1955
Electronics in the Office 1957
Features of the LEO IIC Computer Dec 1959
The Manchester University Atlas Operating System Ferranti Oct 1961
The LEO I, there was a machine May 1965
A Research Center for Augmenting Human Intellect 9 Dec 1968
Talking to the Computer 1969
Performance Problems with LEO I Aug 1975
Me and My Computer by Thomas Turnbull 29 Mar 1978
Memories - Working with the Commodore PET and the BBC Micro by Dr Geoff Luxford 1979
Library's Computer Program - Press Article 17 Apr 1986
Software Bill of Material digital software 14 May 1988
The Provision of Digital Computers to British Universities up to the Flowers Report (1966) LEO 1996
Preserving our Computer Heritage May 2003
LEO Conference 2001 Dec 2003
LEO Conference Report LEO Dec 2003
Punched Card Patents 22 Mar 2005
Disappearing Britain: The British Cuppa with Wendy Craig Dec 2006
Reflections on Decision Support Pioneers 2008
Roger Coleman: Interview Leo Computers Society 22 May 2008
Memories - Toshiba T3200 Application and Usage 5 May 2009
Memories - Me and My Toys Jun 2009
Memories - BCL SUSIE MARK 2 27 Jul 2010
Bill Forfar: Reminiscence LEO 2011
How Lyons Teashops Powered Computers 26 Aug 2011
Memories - Some Jottings From My Past R.P. CARTLEDGE 27 Jun 2012
Memories - Post Office MATS (Mechanical Accounting & Trunk Sorting) Jan 2013
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
65 years ago the age of the computer began....to sell a better tea cake 4 Dec 2016
Memories - Operating the Cadbury Orion computer in the mid-1960s Jul 2017
It's Early Days for the use of AI in Medicine 14 Aug 2018
Why Lyon’s Leo was the Met Office’s cup of tea 30 Dec 2019
Michael Hancock 2020
John Daines: Reminiscence 2020
Alan Hooker: Memoir 2020
John Paschoud: Printing Braille Programmes 2020
Robin Davies: Reminiscence 2020
Tom Brooks: Memoir LEO 2020
Ken Kemp: Reminiscence 2020
Report on Neville Lyons lecture to London Appreciation Society Jan 2020
Greg Wojtan: My Days with LEO 2021
Peter Guest: Reminiscence written by Margaret Guest 2021
Valerie Grose: Further Reminiscences 2021
Helen Clark (Helen Jackson): Reminiscence Apr 2021
LEO the worlds first business computer 14 Jul 2021
Robert Murphy: Reminiscence Apr 2022
Brian Beagley: Life Profile Apr 2022
Peter Hermon 7 Nov 2022
Graham Kinch: reminiscence 20 Nov 2022

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Acorn User - July 1999 1999
N64 Magazine - February 1999 Future Publishing Feb 1999
Edge - Issue 87 - August 2000 Future Publishing Aug 2000
Overload - Issue 39 - September 2000 C++ SIG Sep 2000
Edge - Issue 126 - August 2003 Future Publishing Aug 2003
PC Plus - February 2004 Future Publishing Feb 2004
Edge - Issue 141 - October 2004 Future Publishing Oct 2004
Edge - Issue 170 - Christmas 2006 Future Publishing Dec 2006
Edge - Issue 177 - July 2007 Future Publishing Jul 2007
Edge - Issue 178 - August 2007 Future Publishing Aug 2007
Edge - Issue 181 - November 2007 Future Publishing Nov 2007
Edge - Issue 186 - March 2008 Future Publishing Mar 2008
Perspective July/August 1986 Jul 2008
Acorn User - December 1988 27 May 2009
Acorn User - February 1989 27 May 2009
Acorn User - May 1989 27 May 2009
Acorn User - May 1990 3 Jun 2009
Acorn User - May 1992 10 Jun 2009
Acorn User - September 1992 17 Jun 2009
Acorn User - April 1993 17 Jun 2009
Acorn User - December 1997 15 Jul 2009
Acorn User - Christmas 1997 15 Jul 2009
Acorn User - February 1999 22 Jul 2009
Byte June 1986 16 Sep 2009
Byte November 1989 16 Sep 2009
Byte September 1990 16 Sep 2009
Edge - Issue 210 - January 2010 Future Publishing Jan 2010
NGamer - February 2010 Future Publishing Feb 2010
Edge - Issue 212 - March 2010 Future Publishing Mar 2010
Edge - Issue 213 - April 2010 Future Publishing Apr 2010
Edge - Issue 214 - May 2010 Future Publishing May 2010
Edge - Issue 216 - July 2010 Future Publishing Jul 2010
Edge - Issue 218 - September 2010 Future Publishing Sep 2010
Edge - Issue 223 - January 2011 Future Publishing Jan 2011
Perspective November/December 1986 Nov 2012

Catalogues RELATED to DEC Rainbow 100B in our Library

Item Manufacturer Date
DECdirect Software Catalogue DECdirect Apr 1989

Other Systems Related To DEC Rainbow 100B:

Item Manufacturer Date
DEC Rainbow 100A Digital Equipment Corporation 1982
DEC Rainbow 100+ Digital Equipment Corporation 1982
DECmate II Digital Equipment Corporation 1982
DECMate III Digital Equipment Corporation 1984 to 1990
Computing for engineers Digital Equipment Corporation May 1985
Digital Personal Workstation 433au Digital Equipment Corporation 1997

This exhibit has a reference ID of CH46273. Please quote this reference ID in any communication with the Centre for Computing History.

 

DEC Rainbow 100B

  Book Archive   [3]
  Software Archive   [3]
  Peripherals   [7]
  Promotional Items   [11]

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