Rod McLaughlin


On computable numbers, with an application to the Entscheidungsproblem (31 jul 12)

Bletchley Park


Turing's paper which led to the invention of computers


The huts where Turing worked


A working 'Bombe' - the machine which cracked the Enigma code


A miniature version of the 'Bombe'


Colossus, the first computer, rebuilt


Colossus, the first computer, rebuilt


Colossus, the first computer, rebuilt


Colossus, the first computer, rebuilt


Colossus, the first computer, rebuilt


Five-bit paper tape in the Colossus


Colossus's optical tape reader



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Portland London