October 11, 1979: Visicalc – First Killer PC App Released

by Jeffrey Powers @geekazine · Published October 11, 2017 · Updated October 10, 2017

Dan Bricklin Shows off Visicalc

1979– Visicalc is released by Dan Bricklin. The spreadsheet application is called the first killer app for personal computers. It turned the PC from a hobby to a business tool. Only downfall for Bricklin was he did not patent the system, therefore, clones like SuperCalc, Microsoft’s MultiPlan and Lotus 1-2-3, would show up.

This Day in Tech History podcast show notes for October 11

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