W397 |
GREAT BRITAIN |
Value |
50 Pounds |
Issued by |
Bank of England |
Date |
© 2020 |
Material |
Polymer |
|
|
Elizabeth II |
Alan Turing mathematical table and formulae from Turing’s seminal paper “On Computable Numbers, with an application to the Entscheidungsproblem”; Automatic Computing Engine (ACE) Pilot Machine (one of the first electronic stored-program digital computers), series of background images with technical drawings from the "ACE Progress Report"; ticker tape depicting Alan Turing’s birth date (23 June 1912) in binary code; technical drawings for the "British Bombe" (machine used at Bletchley Park to break Enigma-enciphered messages during WWII) |
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