ICL VME

related topics
{system, computer, user}
{math, number, function}
{company, market, business}
{language, word, form}
{theory, work, human}
{work, book, publish}
{food, make, wine}

VME (Virtual Machine Environment) is a mainframe operating system developed by the UK company International Computers Limited (ICL, now part of the Fujitsu group). Originally developed in the 1970s (as VME/B, later VME 2900) to drive ICL's then new 2900 Series mainframes, the operating system is now known as OpenVME incorporating a Unix subsystem, and runs on ICL Series 39 and Trimetra[1] mainframe computers.

Contents

Origins

The development program for the New Range system started on the merger of ICT and English Electric, and one of the fundamental decisions was that it would feature a brand new operating system. A number of different feasibility and design studies were carried out within ICL, the three most notable being:

  • VME/B (originally System B), targeted at large processors such as the 2970/2980 and developed in Kidsgrove, Staffordshire and West Gorton, Manchester
  • VME/K (originally System T), targeted at the mid-range systems such as the 2960 and developed at Bracknell after the original design for these small processors, System D, was dropped
  • VME/T, which was never actually launched, but warrants a mention as it was conceived to support "fault tolerance", and predated the efforts of the successful American startup company Tandem Computers in this area.

The chief architect of VME/B was Brian Warboys, who subsequently became professor of software engineering at the University of Manchester. A number of influences can be seen in its design, for example Multics and ICL's earlier George 3 operating system; however it was essentially designed from scratch.

Full article ▸

related documents
Instruction set
Scrambler
IBM 1401
Digital signal processing
Multiprocessing
Internet Message Access Protocol
TOPS-20
Vorbis
Blue Gene
DirectX
Data compression
DLL hell
Video codec
Software testing
Distributed computing
GE-600 series
DivX
Bally Astrocade
TI-89 series
Address Resolution Protocol
Wormhole switching
Exidy Sorcerer
WAV
HyperTransport
Video on demand
Wikipedia:Federal Standard 1037C terms/telephony terms
Intel 80386
Wikipedia:Federal Standard 1037C terms/telecommunication network terms
Audio amplifier
IBM System/370