More or Less

A pocket-size history of the calculator

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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’s and 80’s?

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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More or LessBy BBC Radio 4
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