VisiCalc is the first spreadsheet computer program for personal computers, originally released for the Apple II by VisiCorp on October 17, 1979. It is considered the killer application for the Apple II, turning the microcomputer from a hobby for computer enthusiasts into a serious business tool, and then prompting IBM to introduce the IBM PC two years later. More than 700,000 copies were sold in six years, and up to 1 million copies over its history. Wikipedia

Created Year: 1978
Developed by: Bob Frankston • Dan Bricklin • Software Arts
Operating systems: Apple II • Apple SOS • Atari 8-bit family • CP/M • Commodore PET • DOS • HP series 80 • Sony SMC-70 • TRSDOS
Implemented in: assembly language

Wikidata: Q725401