The Creation of the UNIX Operating System
Lengthy encyclopedia-quality article from Bell Labs, covering the early days to the present versions.
About the FreeBSD Project
History and overview from the FreeBSD Handbook.
Bell Labs: Selected Technical Reports
Several classic Unix papers dating back to 1973. Most reports are Gzipped PostScript, some are in PDF.
A Brief History of Unix
History of Unix and causes for its popularity. "This document is designed to give people with no previous UNIX experience some sense of what UNIX is. This document will cover the history of UNIX and an introduction to UNIX."
A Brief Synopsis of Unix History
University of Indiana Knowledge Base article. Summary of Unix versions and links to related entries.
CSRG Archive CD-ROMs
The full source archives of the University of California at Berkeley's Computer Systems Research Group, for sale on a 4-CD set.
Dennis Ritchie's Home Page
Several historic technical reports, anecdotes, and stories from one of the fathers of Unix.
The Evolution of the Unix Time-Sharing System
1979 conference paper by Dennis Ritchie. "Concentrates on the evolution of the file system, the process-control mechanism, and the idea of pipelined commands. Some attention is paid to social conditions during the development of the system."
History of the BSD Daemon
Various drawings, pictures, and information on the red devil BSD mascot.
The History of UNIX
Chapter-length article by Ronda Hauben on "how the need to automate telephone support operations in the U.S. in the late 1960s and the early 1970s nourished the birth and development of the UNIX operating system and how academic computer science contributed to and gained from the development of UNIX."
A History of UNIX before Berkeley
A detailed overview of Unix people and components, 1975-1984.
History of Unix, Linux, and Open Source
Historical comparison of Unix and the free software movement.
Nick Moffitt's $7 History of Unix
History paper detailing the people and places involved in developing Unix.
OMU - One Man Unix
Steve Hosgood's work with an early 1980s Unix clone. Includes some utility sources.
The Unix Heritage Society
Built to foster the "the preservation and maintenance of historical and non-mainstream UNIX systems." Mailing list and archives. Includes early Unix source code, from 1973 through the 1990s.
Unix History
A detailed family tree.
UNIX History Graphing Project
Lists of release dates and dependencies for the various Unix flavors. A graphical representation of the Unix family tree is planned.
Unix Programmer's Manual, Seventh Edition
Archives at Bell Labs of the 1979 manual. Troff source and formatted Gzipped PostScript/PDF versions.
The Unix System: History and Timeline
Historical summary and timeline.
The UNIX Time-Sharing System
Ritchie and Thompson's famous Communications of the ACM paper from 1974. An authoritative and technical overview of the operating system.
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