System 7 released
System 7 (codenamed "Big Bang" and sometimes retroactively called Mac OS 7) is a single-user graphical user interface-based operating system for Macintosh computers. It succeeded System 6, and was the main Macintosh operating system until it was succeeded by Mac OS 8 in 1997. Features added with the System 7 release included virtual memory, personal file sharing, QuickTime, QuickDraw 3D, and an improved user interface.
Founder of Apple Inc.