C. 2500 BCE: Sumerian abacus -- c. 700 BC: Scytale -- c. 150: Antikythera mechanism -- c. 60: Programmable robot -- c. 850: "On Deciphering Cryptographic Messages ...
Simson Garfinkel is a senior data scientist at the U.S. Department of Homeland Security and a part-time faculty member at George Washington University. He has written extensively on computer security, ...
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