Computer ◆ Conservation ◆ Society

Just some of the machines and systems being restored to working order by the Computer Conservation Society.


Next Events

Constructing the EDSAC Replica - Lessons Learned
April 19th 2018 - London

Restoring the 2966
March 20th 2018 - Manchester

See events page for more information

A fullly-referenced written version of Martyn Thomas’ Y2K February lecture is available here


Historic Document Rescue

From time to time the Society is approached by people who have come into the possession of documents relevant to historic computers and who feel that they should “go to a good home”.

Unfortunately the Computer Conservation Society is no longer in a position to collect such material, though we can often suggest a suitable home for it. If you have a need to dispose of historic material we suggest that you should first read our guide Archives and your Personal Papers.

In particular, we should stress that a list of the document titles is essential before any progress can be made.


Document Exchange within the CCS

Because CCS members use widely differing IT systems, difficulties sometimes arise when documents are sent between members. In an attempt to minimise such problems a page of guidance notes can be found document_exchange.htm.


News headlines

February 2018

Exciting news from Bletchley Park!

Agreement has been reached to transfer the Turing-Welchman Bombe Rebuild from the premises of the Bletchley Park Trust to those of the National Museum of Computing, still within the Bletchley Park estate.

John Harper, leader of the Bombe Rebuild team said “After careful consideration of the options, The Bombe Trustees approached TMNoC, which agreed to host the Bombe exhibit. We are delighted with this solution and welcome the opportunity to remain part of the overall visitor attraction at Bletchley Park. Our team of volunteers is looking forward to continuing to demonstrate how the Bombes made their vital contribution to Bletchley Park’s wartime role in the new venue. We thank the Bletchley Park Trust for their co-operation over the years and are pleased that the story of the Bombe will remain very much part of the story that it tells.”

Andrew Herbert, TNMoC chair responded “To house the reconstructed Bombe close to the Colossus Rebuild makes a lot of sense from many perspectives. As a pre-computing electro-mechanical device, the Bombe will help our visitors better understand the beginnings of computing and the general thought processes that led to the development of Colossus and subsequent computers. The story of the design of the Bombe by Alan Turing, the father of computer science, leads very appropriately into the eight decades of computing that we curate. Even the manufacture of the Bombes leads directly to British computing history – the originals were built by the British Tabulating Machine company (BTM) in Letchworth, which later became part of ICT, then ICL and now Fujitsu”

The Bombe will be housed near Colossus in a new gallery. A crowdfunding campaign to raise £50,000 has been sucessful and has exceeded its target. Many thanks to everybody who contributed.

January 2018

CCS Visit to the Museum of Computing Machinery of Pisa University

Following the sucessful visits to Germany in each of the last three years, for a change we are arranging a visit to Italy, specifically to the Museum of Computing Machinery at Pisa.

The Museum opened to the public in 1995. It has two main collections: Personal Computers and Mainframe Computers. The personal computers section is a selection of mechanical and electrical desk computing machines, pocket calculators, together with some Macintosh, Commodore, IBM and other PCs, including a working Olivetti Programma 101.

The mainframe computers area shows:

  • the Calcolatrice Elettronica Pisana (CEP), whose construction dates back to the mid 1950s and it was one of the earliest computers built in Italy;
  • an Olivetti 6001, smaller version of the first Italian commercial computer, produced in the early 1960s;
  • a Bull Gamma 3;
  • some parts of the CINAC, a computer made of a Ferranti Mark I* (1955) modified and upgraded with later addictions in the second part of the 1960s,
  • unique design pieces by Olivetti.
At the entrance of the Museum the visitor is welcomed by a CRAY X-MP (1982).

The University of Pisa was founded in 1343 by an edict of Pope Clement VI and it is the 19th oldest extant university in the world. It houses the Orto Botanico, Europe's oldest academic botanical garden, founded in 1544.

The main visit will take place on the 28th of April although outbound travel will have to be the day before (or earlier). As usual we will organise a group dinner on the 27th & 28th. Members should make their own hotel and travel arramgements but we suggest booking hotels in the “Historic Centre” of Pisa.

Contact Dan Hayton at if you are interested in joining us.

Tony Sale Awards

The Tony Sale Awards for 2018 are now underway. Nominations are sought for meritorious projects in the field of computer history. Goto for more information.


Founded in 1989, the Computer Conservation Society is a joint venture between the British Computer Society, the Science Museum and the Museum of Science and Industry in Manchester.

Our primary mission is to preserve historic computers, develop awareness of the history of computing, and encourage research. We run many specialised projects, organise public lecture series, and publish a regular bulletin.

Membership of the society is open to all.
If you would like to join the society, please click here for more information.