What is UNIX?

Unix

Unix (officially trademarked as UNIX, sometimes also written as Unix in small caps) is a multitasking, multi-user 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, Michael Lesk and Joe Ossanna. The Unix operating system was first developed in assembly language, but by 1973 had been almost entirely recoded in C, greatly facilitating its further development and porting to other hardware. Today's Unix system evolution is split into various branches, developed over time by AT&T as well as various commercial vendors, universities (such as University of California, Berkeley's BSD), and non-profit organizations.

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Some articles on UNIX:

Plotutils - History
... Several utilities were inspired by Unix plotting utilities ... utility and various plot filters were present in the first releases of Unix from Bell Laboratories ... By the time of Version 7 Unix, `graph', `plot', `spline', and several device-dependent versions of `libplot' were a standard Unix features ...
CB UNIX
... Columbus UNIX (or CB UNIX) was, according to Marc Rochkind, a variant of the UNIX operating system internal to Bell Labs ... CB UNIX was developed to address deficiencies inherent in Research Unix, notably the lack of interprocess communication and file locking, considered essential for a database management system ... support system products were based on CB UNIX such as Switching Control Center System ...
Srm (Unix) - See Also
... rm (Unix) remove file in Unix ... data remanence shred (Unix) ...
Unix - Branding
... See also List of Unix systems In October 1993, Novell, the company that owned the rights to the Unix System V source at the time, transferred the trademarks of ... Unix vendor SCO Group Inc ... The present owner of the trademark UNIX is The Open Group, an industry standards consortium ...
Callan Data Systems - Unistar
... using the Sun-1 board, which was based on the Motorola 68000 CPU, and which ran UNIX licensed from AT T ... development consisted chiefly of writing device drivers for the integrated system, based on the UNIX kernel, and integrating third-party applications for ... Other firms at the time were competing to build the first commercial UNIX workstations based on inexpensive microprocessor-based Multibus-single-board CPUs ...