GREAT BRITAIN £50 Alan Turing 1st Run LOW S/N AA01 000130 SUPERB Unc RARE

  
SUPERB Condition with a highly desirable FIRST Run AA01 000130. Turing was highly influential in the development of. Providing a formalisation of the concepts of. Which can be considered a model of a.

Turing is widely considered to be the father of theoretical computer science and. Government Code and Cypher School. For a time he led. The section that was responsible for German naval cryptanalysis.

Here, he devised a number of techniques for speeding the breaking of German. Including improvements to the pre-war Polish. Machine that could find settings for the. Turing played a crucial role in cracking intercepted coded messages that enabled the Allies to defeat the. In many crucial engagements, including the.