| 1970 |
Ken Thompson
suggests the name "Unix" for the
fledging operating system born in 1969 at AT&T Bell Labs. |
| 1973 |
The kernel (core) of Unix is re-written in the
C language, making it the world’s first operating system that’s
"portable"—that is, able to run on multiple kinds of hardware. |
| 1977 |
First BSD (Berkeley Software Distribution)
version released. Licensees must also get a license from AT&T. |
| 1983 |
Version 4.2 BSD is released. By the end of
1994, more than 1,000 licenses are issued. AT&T release its
commercial version "System V" |
| 1983 |
AT&T
releases "System V release 3." IBM,
Hewlett-Packard and others base their own Unix-like systems on this
version. |
|
| 1991 |
Linus Torvalds releases version 0.02 of Linux.
An open source Unix-like operating system. |
| 1992 |
Bill Jolitz releases 386/BSD, a full version
of Unix with no AT&T code. |
| 1992 |
Sun Microsystems release Solaris, a version of Unix
based on System V release 4, incorporating many BSD features. |
| 1994 |
BSD4.4-Lite is released by Berkeley. It is
entirely free of legal encumbrances from the old AT&T code. Version
1.0 of Linux is also released this year; Linux incorporates features
from both AT&T’s System V and BSD versions of Unix. |
| 1999 |
Apple releases Darwin, a version of BSD Unix,
and the core of the Mac OS X. |
|