Steve Jobs, along with Steve Wozniak, co-founded Apple Computer in 1976 and introduced the Apple I, widely regarded as the first personal computer.

The Apple II, released in 1977, was the first personal computer to achieve widespread commercial success.

The Apple II initially used the CP/M operating system, developed by Digital Research.

The Finder was the first graphical user interface introduced by Apple in 1984, along with the Macintosh computer.

IBM introduced the IBM PC in 1981, which became a dominant force in the personal computer market.

The IBM PC used MS-DOS (Microsoft Disk Operating System), developed by Microsoft.

Commodore introduced the Commodore 64 in 1982, which became one of the best-selling personal computers of all time.

The Commodore 64 used Commodore BASIC, a version of the BASIC programming language developed by Commodore.

Atari introduced the Atari 800 in 1979, which was known for its advanced graphics and sound capabilities.

The Atari 800 used Atari OS, a proprietary operating system developed by Atari.

The Macintosh, introduced by Apple in 1984, was the first personal computer to feature a mouse-driven graphical user interface.

VisiCalc, developed by Dan Bricklin and Bob Frankston, was the first spreadsheet program for personal computers, released in 1979.

WordPerfect, developed by Satellite Software International, was a popular word processing program for personal computers in the 1980s.

dBASE II, developed by Ashton-Tate, was the first commercially successful database management system for personal computers, released in 1983.

Adventure, developed by Warren Robinett and published by Atari in 1980, is considered one of the first graphical adventure games.