The Mark Williams Company was a small software company in Chicago, Illinois (later moved to Northbrook, Illinois) that created Coherent, one of the first Unix-like operating systems for IBM PCs and several C programming language compilers. Chicago (ʃɪˈkɑːgoʊ is the largest City by population in the state of Illinois and the American Midwest of the United States. Northbrook is a village located at the northern edge of Cook County Illinois. The Coherent Operating system was a Unix Version 7 clone by the now-defunct Mark Williams Company, originally produced for the PDP-11 A Unix-like (sometimes shortened to *nix) Operating system is one that behaves in a manner similar to a Unix system while not necessarily conforming An operating system (commonly abbreviated OS and O/S) is the software component of a Computer system that is responsible for the management and coordination tags please moot on the talk page first! --> In Computing, C is a general-purpose cross-platform block structured A compiler is a Computer program (or set of programs that translates text written in a computer language (the source language) into another It was founded by Robert Swartz in 1980 and discontinued operations in 1995. Year 1980 ( MCMLXXX) was a Leap year starting on Tuesday (link displays the 1980 Gregorian calendar) Year 1995 ( MCMXCV) was a Common year starting on Sunday. Events of 1995 The name comes from the middle name of Robert Swartz's father, William Mark Swartz.
Bob Swartz moved the company (originally producing a soft drink called Dr. Enuf) into software with his father's help and the company became known as the Mark Williams Company.
AT&T had Bell Labs investigate the Mark Williams Company for infringement on their Unix clone Coherent but found no evidence that it copied Unix. Before proposing a merge request please see Talk and see if the merger you propose has recently been made and Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) is the Research organization
Some notable achievements:
- Produced Coherent, the first commercially viable clone of Unix. The Coherent Operating system was a Unix Version 7 clone by the now-defunct Mark Williams Company, originally produced for the PDP-11
- csd the world's first C source debugger.
- Let's C the first low-cost professional C compiler for the IBM PC.
- Mark Williams C for the Atari ST, first major C programming environment for the ST computers.
External links
- START Vol. 1 No. 3 Mark Williams C & Menu by Arick Anders
- START Vol. 2 No. 2 Mark Williams C 2. 0 by Arick Anderson
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