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Bletchley veteran recalls work on Colossus

6 February 2014 Last updated at 19:14 GMT

Margaret Bullen recalls her memories of working at Bletchley Park during the World War II where she helped wire the Colossus machine, Britain's first electronic computer.

She was attending events commemorating the 70th anniversary of the commencement of operations by Colossus, at the National Museum of Computing in Bletchley Park, Milton Keynes.

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