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Three cheers for Ada
In the news article "German beats wartime Colossus on Nazi decrypt" (PCW April 2008), you describe how Joachim Schueth recently used his laptop to beat the replica Colossus at Bletchley Park - I suspect living nearer to the transmitter helped him too.
On the same page, you also mention Ada Lovelace, so it is rather odd that you didn't mention the connection between them. Joachim used the Ada programming language to process the radio signals and to simulate the behaviour of Colossus.
How refreshing it is to see someone choosing to write programs in Ada, whether it is for the sheer fun of it or because they want confidence that their programs will not let them down on the day. Well done Joachim and Ada!
Terry Froggatt
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