Unix

related topics
{system, computer, user}
{math, number, function}
{company, market, business}
{work, book, publish}
{language, word, form}
{law, state, case}
{war, force, army}
{group, member, jewish}
{@card@, make, design}
{mi², represent, 1st}
{style, bgcolor, rowspan}

Unix (officially trademarked as UNIX, sometimes also written as Unix with small caps) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, and Joe Ossanna. Today's Unix systems are split into various branches, developed over time by AT&T as well as various commercial vendors and non-profit organizations.

The Open Group, an industry standards consortium, owns the “Unix” trademark. Only systems fully compliant with and certified according to the Single UNIX Specification are qualified to use the trademark; others might be called "Unix system-like" or "Unix-like" (though the Open Group disapproves of this term). However, the term "Unix" is often used informally to denote any operating system that closely resembles the trademarked system.

During the late 1970s and early 1980s, the influence of Unix in academic circles led to large-scale adoption of Unix (particularly of the BSD variant, originating from the University of California, Berkeley) by commercial startups, the most notable of which are Solaris, HP-UX and AIX. Today, in addition to certified Unix systems such as those already mentioned, Unix-like operating systems such as Linux and BSD descendants (FreeBSD, NetBSD, and OpenBSD) are commonly encountered. The term "traditional Unix" may be used to describe a Unix or an operating system that has the characteristics of either Version 7 Unix or UNIX System V.

Contents

Full article ▸

related documents
Freenet
WordPerfect
MIPS architecture
Mach (kernel)
Field-programmable gate array
Commodore 64
Motorola 68000
Smart card
Booting
Instant messaging
Universal Mobile Telecommunications System
Network address translation
Serial port
Portable Network Graphics
ALOHAnet
Celeron
SCART
Phreaking
T-carrier
Hard disk drive
RAID
Sinclair ZX81
TurboGrafx-16
IEEE 1394 interface
IBM PC compatible
Tandy 1000
Mainframe computer
Framebuffer
Wireless LAN
Analog-to-digital converter