VisiCorp

VisiCorp
Founded	1977 Massachusetts
Founders	Dan Fylstra, Peter R. Jennings

VisiCorp,^[1] originally Personal Software, was an early personal computer software publisher. Its most famous products were Microchess,^[2] Visi On^[3]^[4] and VisiCalc.^[5]

^ Andrew Pollack (February 26, 1984). "How a software winner went sour". The New York Times.
^ "Oral History of Peter Jennings | Mastering the Game | Computer History Museum".
^ Lemmons, Phil (June 1983). "A Guided Tour of Visi On". BYTE. Vol. 8, no. 6. pp. 256–278. Retrieved 20 October 2013.
^ Woodmansee, George (July 1983). "Visi On's Interface Design". BYTE. Vol. 8, no. 7. pp. 166–182. Retrieved 20 October 2013.
^ "A sidebar to the article 'Ten Years of Rows and Columns' published in Byte, issue 13/1989, pp. 326–328". Yeah, we called it all sorts of things – electronic ledger, electronic blackboard, visible calculator – that's what we finally based the name, VisiCalc, on.