Timeline of Computer History, 1979

The record

Type

Independent analysis

Tier

B: A high-quality independent analysis. Two agreeing tier B sources are needed to publish a figure.

Locator

Software & Languages, "Visicalc is developed"

Consulted

2026-09-13

Address

https://www.computerhistory.org/timeline/1979/

License

Copyright Computer History Museum. Cited for its dated timeline entry; no passage is reproduced.

Trivia citing this source

• The program that made it a business machine context, not evidence