PCWorld.com - Three Minutes: Godfathers of the Spreadsheet: "Twenty-five years ago, personal computers got serious. The occasion: The introduction of VisiCalc, the first electronic spreadsheet and the original 'killer app.'
VisiCalc enjoyed a relatively brief time in the sun. The program made its debut in 1979 and saw its sales peak in 1982. It was sold to Lotus Development only three years later, brought down by 1-2-3 and squabbles between creator Software Arts and marketer VisiCorp.
But VisiCalc changed the world by bringing the Apple II into offices worldwide.
In May, the Software History Center in Boston reunited veterans of the PC's first decade to reminisce and exchange war stories. The luminaries included the three principals behind VisiCalc: Dan Bricklin, who conceived the idea; Bob Frankston, who programmed VisiCalc; and Dan Fylstra, whose VisiCorp brought the product to a surprised world. Here are edited versions of interviews with all three."