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John Harper (computer engineer)
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<p> John Harper (born 11 November 1937) is a retired <a href="/facts/Computer_engineering/5x1TRKGo">computer engineer</a>. He led a <a href="/facts/Computer_Conservation_Society/yLjzcx99">Computer Conservation Society</a>/<a href="/facts/Bletchley_Park/ID0B04WB">Bletchley Park</a> team that rebuilt a working <a href="/facts/World_War_II/2efV5L1U">World War II</a> electromechanical <a href="/facts/Bombe/PR64Llq7">Bombe</a> decryption device. </p>