Thank you for Looking at these AMAZING & RARE Banknotes.
Great Britain
:
Bank of England's Alan Turing £50 and Turner £20, both in PERFECT Fresh condition !
SUPERB and Pristine,
and highly desirable with the FIRST Run AA01 000131 Matching Pair Serial nos.
Alan Turing was
an English
mathematician
,
computer scientist
,
logician
,
cryptanalyst
,
philosopher
, and
theoretical biologist
.
Turing was highly influential in the development of
theoretical computer science
, providing a formalisation of the concepts of
algorithm
and
computation
with the
Turing Machine
, which can be considered a model of a
general-purpose computer
.
Turing is widely considered to be the father of theoretical computer science and
artificial intelligence
.
During the
Second World War
, Turing worked for the
Government Code and Cypher School
(GC&CS) at
Bletchley Park
, Britain's
codebreaking
centre that produced
Ultra
intelligence. For a time he led
Hut 8
, the section that was responsible for German naval cryptanalysis. Here, he devised a number of techniques for speeding the breaking of German
ciphers
, including improvements to the pre-war Polish
bombe
method, an
electromechanical
machine that could find settings for the
Enigma Machine
. Turing played a crucial role in cracking intercepted coded messages that enabled the Allies to defeat the
Axis powers
in many crucial engagements, including the
Battle of the Atlantic
.
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