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This U.S. Navy “bombe” was one of many computers used to decrypt German military communiqués. It was much too large to fit inside a greeting card. Image source: J. Brew/Flickr.

This U.S. Navy “bombe” was one of many computers used to decrypt German military communiqués. It was much too large to fit inside a greeting card. Image source: J. Brew/Flickr.

Univac computer - "Dude, how do you find Pinterest on this thing?"

Univac computer - "Dude, how do you find Pinterest on this thing?"

Sometimes I really believe this is what's happening inside my machine when it is slow as molasses.

Sometimes I really believe this is what's happening inside my machine when it is slow as molasses.

Cray Super Computer - Billy keeps pushing buttons? Give him a keyboard!

Cray Super Computer - Billy keeps pushing buttons? Give him a keyboard!

Bletchley Park Colossus - British computer 1944.  The tape spools on right are a 5000 character per second "hard drive". About 1 page a second.

Bletchley Park Colossus - British computer 1944. The tape spools on right are a 5000 character per second "hard drive". About 1 page a second.

Dr. Rose Mary Sheldon (VMI History Dept) was showing the William Friedman Collection to visitors of the George C. Marshall Museum.

Dr. Rose Mary Sheldon (VMI History Dept) was showing the William Friedman Collection to visitors of the George C. Marshall Museum.

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The "Purple" Encryption Machine secret weapons developed by Japan during World War - World War II Social Place

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