Fylstra had an extra Apple II. He let Bricklin and Frankston borrow it. Together they built VisiCalc, the first electronic ...
(Yes, we did slightly miss Spreadsheet Day. Feel free to complain in the comments.) Then came IBM's PC, imitating one key ...
So he wrote a program for the new Apple II personal computer: an electronic spreadsheet. His friend Bob Frankston helped him sharpen up the software - and, on 17 October 1979, VisiCalc went on sale.