Dan Bricklin came up with the idea for an “electronic spreadsheet” while still a graduate student at Harvard Business School. He and Bob Frankston founded Software Arts, Inc. in 1979 to explore the idea and VisiCalc was the result.
First demonstrated at the National Computer Conference in June 1979, the Apple II version of VisiCalc was shipped on October 17, 1979. Although developed by Software Arts, VisiCalc was sold by Personal Software (later VisiCorp), a company founded in 1976 by Dan Fylstra and Peter Jennings. (src)
download for PC 16bit (27kb)
http://www.bricklin.com/history/vcexecutable.htm
ref - https://news.ycombinator.com/item?id=30928076
Online Emulator with VisiCalc running
https://www.pcjs.org/software/pcx86/app/other/visicalc/1981/
https://subset.so/blog/excel-2-0
First demonstrated at the National Computer Conference in June 1979, the Apple II version of VisiCalc was shipped on October 17, 1979. Although developed by Software Arts, VisiCalc was sold by Personal Software (later VisiCorp), a company founded in 1976 by Dan Fylstra and Peter Jennings. (src)
download for PC 16bit (27kb)
http://www.bricklin.com/history/vcexecutable.htm
ref - https://news.ycombinator.com/item?id=30928076
Online Emulator with VisiCalc running
https://www.pcjs.org/software/pcx86/app/other/visicalc/1981/
https://subset.so/blog/excel-2-0