15th century when dinosaurs walked the earth.
1991
2020
In 1991, in Helsinki, Linus Torvalds began a project that later became the Linux kernel.
Microsoft's first operating system named Windows was introduced on November 20, 1985. The Microsoft Windows operating system is now available in 137 languages.
The first operating system was developed in the 1950s.
1980
Apples first operating system was Apple DOS 3.1 for the Apple II in 1978. Versions 1 and 2 were internal testing versions and were not made available to the public. They developed Apple SOS (Sophisticated Operating System) for the Apple III in 1980. Parts of the SOS were used in the Lisa's operating system which in turn would lead to the Macintosh Operating System. The first operating system for the Macintosh came out in 1984, with the release of the first Macintosh. This was known as "System 1.0". The current series of system software, Mac OS X, was released in 1999 for servers, and 2001 for desktops.
1979
On January 24, 1984, Apple Computer, Inc. (now Apple Inc.) introduced the Apple Macintosh personal computer, with the Macintosh 128K model, which came bundled with the Mac OS operating system.
1983
John Coleman Jr in 1980
1975