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Spent the day touring Bletchley park and also the National museum of computing, where there is a rebuilt Collossus, the world's very first, programmable electronic computer, that remained top secret until the mid 1970s. (It used 2,500 valves!) This was the computer which broke the ultra-high-security German cipher code, Lorenzo, used by the Nazi high command.
Bill Tutte (photo) worked out how the Lorenzo machine operated and its circuitry without ever seeing one, right down to calculating it had 41 cog gear wheels!
In Bletchley park there is also a rebuilt Bombe machine, which broke the German enigma code.
Thete are many exhibits and lectures on this period. It is a fantastic place to visit, but one needs more than one day to explore it as properly as it deserves. That's why I'm going back there tomorrow!!!

Petter 9 July 30
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0

That's awesome, I'd love to go there. Tommy Flowers built the first programmable computer, but he had to remain quiet about it while people who built computers years later got all the credit.

[en.wikipedia.org]

BD66 Level 8 July 30, 2019

Actually, a German built an elementary programmable, electronic computer in 1938, but it got broken and Hitler was looking for weapons, not adding machines, so money was not forthcoming and it was never rebuilt.
Flowers' machine was likewise not funded by the government, but fortunately the Post Office used its own funds to build a "miniature" (1,500 valve) machine that worked well enough to crack Lorenz codes, after which the government "experts" changed their minds and ordered two full size (2,500 valve) computers. By the end of the war there were 12 of them, two of which ended up being used until the mid-sixties in order to crack Russian secret messages. Hence another reason for concealing their existence and denying Flowers his rightful accolades.

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Awesome

bobwjr Level 10 July 30, 2019
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Great place to visit...must try and go there next time I go over to visit my family...not too far away in Leicester. Glad you’re having an interesting holiday.

I always try to see interesting things.

1

Cool! I'd like to see that some day.

It's worth the journey. The pound is quite low against the dollar right now!

1

Wartime Bletchley was populated by some 9,000 people involved in code breaking. The quirks of many of the top brains there remind me of British equivalents of Richard Feynman - brilliant and unconfined by convention.

Petter Level 9 July 30, 2019
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