Lucent Technologies provides articles on the creation and overview of the UNIX OS as well as biographies on people who helped to develop the system.

Find a document written by Charles Severance that is aimed at giving new UNIX users a history and introduction to the OS.

Access a collection of UNIX reports, tutorials, and manuals written in 1973 to early 1990s. Available in .PDF and PostScript format.

Author writes this "embellished version" of UNIX history that begins in New Jersey and continues to Berkeley, Cambridge, Helsinki, and back to the SF Bay.

Find out how to obtain a copy of the full source archives of the University of California at Berkeley's Computer Systems Research Group.

Bell Laboratories researcher Dennis Ritchie presents this paper that describes the early development of the UNIX operating system.

Knowledge Base offers this collection of UNIX info including a FAQ, a history timeline, and a graph of the various UNIX implementations.

Read a paper written in 1974 by Ritchie and Thompson that discusses the nature and implementation of the file system and of the user command interface.

Read the abstract and access the full paper on the evolution of UNIX and the automation of Telephone Support Operations.

Steve Hosgood writes about his days of hobby computing and his work on a UNIX clone in the early 1980s. See photos and download utility packages.

Group is dedicated to the preservation and maintenance of historical and non-mainstream UNIX systems and provides project info, a mailing list, and the UNIX Archive.

Warren Toomey presents this project that attempts to collate a list of release dates and dependencies for a number of UNIX variants. Access the current set of files.

Resource page points to .PDF and PostScript versions of documents that came with the seventh edition of the UNIX operating system from Bell Laboratories.