About this episode
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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