Oscilloscope

More old tech from Bletchley. This oscilloscope was being used to monitor Colossus. Punch tape and parts of Colossus in the background.

 

Colossus was the world's first electronic, digital, programmable computer. British codebreakers used Colossus to read secret German messages during World War II. The National Museum of Computing, Bletchley Park, Milton Keynes, UK.

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