The Installation and Maintenance of Colossus

  title={The Installation and Maintenance of Colossus},
  author={W. W. Chandler},
  journal={Annals of the History of Computing},
  • W. Chandler
  • Published 1 July 1983
  • Art
  • Annals of the History of Computing
The article describes the procedures adopted for the installation and maintenance of the Colossus machines installed at Bletchley Park during the latter years of World War II. 

Tunny and Colossus

In the footsteps of Colossus: a description of Oedipus

  • S. Lavington
  • Psychology
    IEEE Annals of the History of Computing
  • 2006
Oedipus, a special-purpose rapid analytical machine using novel digital storage, developed by GCHQ and the UK companies Elliott and Ferranti, and its history has only recently been made publicly available.

The Geheimschreiber Secret

The present paper appears under joint authorship, however, the responsibilities of the two authors are divided and well defined. Lars Ulfving is the sole author of the original Swedish version of The

Review of Lorenz and comments on the work of William Tutte

For six years at the end of his life, Roberts attempted to raise public awareness of the importance of Bletchley Park’s attack on Lorenz and the construction of Colossus, and sought better recognition for mathematician and fellow BletChley Park codebreaker William T. “Bill” Tutte.

The Secret Digit

Three Borehamwood digital computers were designed to perform tasks for the UK’s intelligence services, via GCHQ (Government Communications Headquarters), and went to a joint British–Australian long-range missile facility in Australia, to be used in analysing data from the Woomera test range.

Contextualizing Colossus: Codebreaking Technology and Institutional Capabilities

This article focuses on the celebrated “Colossus” electronic codebreaking devices as one element of a highly successful institutional collaboration between Bletchley Park and the Post Office research station at Dollis Hill, where they were designed and built.

Remote sensing of ecological responses to changes in the hydrological cycles of the tonle sap, Cambodia

  • S. Benger
  • Environmental Science
    2007 IEEE International Geoscience and Remote Sensing Symposium
  • 2007
There is an urgent need to develop more effective cross-border management plans and cooperation for the water resources of the Mekong system before the unique and economically important Tonle Sap region slips into further decline.

GCHQ and UK Computer Policy

GCHQ together with its defensive arm, the Communications-Electronics Security Group and their various historical predecessors have presided over the complex matter of gathering intelligence from the ether and also attempting to protect the security of British codes and ciphers for more than a century.

Unwinding performance and power on Colossus, an unconventional computer

  • B. Wells
  • Computer Science
    Natural Computing
  • 2010
It is seen that a UTM could have been implemented on a clustering of the ten Colossus machines installed at Bletchley Park, England, by the end of WWII in 1945, and several advances in input, output, speed, processing, and applications are offered.

Formal modelling and analysis of dynamic reconfiguration of dependable systems

A process algebra which is CCS extended with a new type of process (termed a fraction process) in order to model process reconfiguration, which is the creation, deletion and replacement of processes that is not designed into a system when it is manufactured.