A pocket-size history of the calculator
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\u2019s and 80\u2019s?
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\nProducer: Debbie Richford\nProduction Co-ordinator: Brenda Brown\nSeries Producer: Tom Colls\nSound Mix: Hal Haines\nEditor: Richard Vadon