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Catalogue description Government Communications Headquarters: Early Computers: Reports
| Reference: | HW 76 |
|---|---|
| Title: | Government Communications Headquarters: Early Computers: Reports |
| Description: |
Compilation reports describing the design and construction of early computers in GCHQ including the logical design and circuit operation of each basic unit of equipment. |
| Date: | 1949-1980 |
| Held by: | The National Archives, Kew |
| Legal status: | Public Record(s) |
| Language: | English |
| Creator: |
Government Code and Cypher School, 1919-1946 |
| Physical description: | 8 volume(s) |
| Access conditions: | Open unless otherwise stated |
| Immediate source of acquisition: |
From 2007 Government Communications Headquarters |
| Selection and destruction information: | Records selected under Acquisition criteria 3.1.2 (External Relations and Defence) |
| Accruals: | No further accruals are expected |
| Administrative / biographical background: |
These reports describe the design and construction of early computers developed in GCHQ after the Second World War, including Colorob (a major GCHQ project of a modular design using vacuum tube technology which combined the functionality of Colossus and Robinson, but operating 20 times faster). |
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