The Apple II, which first began shipping in 1977, came as a ready-to-use computer equipped with a keyboard, compatible with any display monitor. Priced at $1,298, it also featured color, graphics, expansion slots, game paddles, and had the BASIC programming language built-in.
The Apple II DOS source code was developed by Paul Laughton, a contract programmer from Shepardson Microsystems, who wrote DOS on punch cards over the span of seven weeks after Apple paid $13,000 for his services. Read Full About Computer History Museum Releases Apple II DOS Source Code
