C. 2500 BCE: Sumerian abacus -- c. 700 BC: Scytale -- c. 150: Antikythera mechanism -- c. 60: Programmable robot -- c. 850: "On Deciphering Cryptographic Messages ...
CAMBRIDGE, Mass. -- So, you think you've cleaned all your personal files from that old computer hard drive you're selling? A pair of MIT graduate students suggest you think again. Over two years, ...
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