Visicalc

Belated #TBT: VisiCalc, the First Spreadsheet Program

I wrote this yesterday and didn't publish it. Go figure. Anyway, VisiCalc was the first spreadsheet program, hitting the market in 1979. It was developed by Dan Bricklin and Bob Frankston, originally running on the Apple II and was consider its "killer app."   In a 1980 review, BYTE stated: "The most exciting and influential piece […]