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Piece
Colossus Working Aids. Colossus was the first computer, used at Bletchley Park for...
Catalogue reference: HW 25/34
What’s it about?
This record is about the Colossus Working Aids. Colossus was the first computer, used at Bletchley Park for... dating from 1945 Jan 01 - 1945 Aug 30 in the series Government Code and Cypher School: Cryptographic Studies. It is held at The National Archives, Kew.
Is it available online?
No, this record is not available online. However, you can order a copy. Other ways to view it.
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Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
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HW 25/34
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Date (When the record was created)
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1945 Jan 01 - 1945 Aug 30
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Description (What the record is about)
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Colossus Working Aids. Colossus was the first computer, used at Bletchley Park for cryptanalytic work, in particular on Tunney, the German High Command on-line cypher. This folder contains various instructions and working aids for use by personnel manning the machine
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Held by (Who holds the record)
- The National Archives, Kew
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Legal status (A note as to whether the record being described is a Public Record or not)
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Public Record(s)
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Access conditions (Information on conditions that restrict or affect access to the record)
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Retained Until 2004
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Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
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Open Document, Open Description
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Subjects (Categories and themes found in our collection (our subject list is under development, and some records may have no subjects or fewer than expected))
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- Topics
- Computing
- Intelligence
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C11199973/
How to order it
- View this record page in our current catalogue
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Series information
HW 25
Government Code and Cypher School: Cryptographic Studies
See the series level description for more information about this record.
Catalogue hierarchy
Over 27 million records
This record is held at The National Archives, Kew
17,110 records
Within the department: HW
Records created or inherited by Government Communications Headquarters (GCHQ)
42 records
Within the series: HW 25
Government Code and Cypher School: Cryptographic Studies
You are currently looking at the piece: HW 25/34
Colossus Working Aids. Colossus was the first computer, used at Bletchley Park for...
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