Chapter 1. History and Goals
1.1 History of the UNIX System
The UNIX system has been in wide use for over 40 years and has helped to define many areas of computing. Although numerous individuals and organizations have contributed (and still contribute) to the development of the UNIX system, this book primarily concentrates on the BSD thread of development:
• Bell Laboratories, which invented UNIX
• The Computer Systems Research Group (CSRG) at the University of California at Berkeley, which gave UNIX virtual memory and the reference implementation of TCP/IP
• The FreeBSD project, the NetBSD project, the OpenBSD project, and the Dragonfly project, which continue the work started by the CSRG
• The Darwin operating system at the core of Apple’s ...
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