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A pocket-size history of the calculator

Tim Harford explores the history of calculators, from clockwork to the Kashio brothers, with author Keith Houston.

How was the calculator invented? How did it go from something the size of a table to something that could be carried in your pocket, the must-have gadget of the 1970鈥檚 and 80鈥檚?

Tim Harford unpicks the history of the calculator with Keith Houston, author of Empire of the Sum: The Rise and Reign of the Pocket Calculator.

Presenter: Tim Harford
Producer: Debbie Richford
Production Co-ordinator: Brenda Brown
Series Producer: Tom Colls
Sound Mix: Hal Haines
Editor: Richard Vadon

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9 minutes

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