The document outlines the history of early personal computers, beginning with the 1975 introduction of the Altair 8800, the first computer to use the Intel 8080 CPU. It then discusses the founding of Apple Computer by Steve Wozniak and Steve Jobs in 1976 with the Apple I, followed by the Apple II in 1977 which introduced game controllers, sound, and color displays. The Commodore PET was introduced in 1977 as the first full-featured personal computer, later becoming the Commodore Business Machines line. Finally, the Osborne I was invented by Adam Osborne and introduced in 1981 as the first portable personal computer, weighing under 25 pounds.

1. HISTORY OF THE PC