Say the word "computer" and you’ll probably picture a PC or laptop. But not long ago, a "computer" was a person who did scientific calculations by hand. Tech Tuesday looks at an unknown slice of history, and explores the stories of people who performed the computational labor that made technological achievements possible.

Guests

  • David Alan Grier Mathematician, and Professor at Eliot School of International Affairs, George Washington University; and author of "When Computers Were Human" (Princeton Univ. Press)

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