Twenty Years of Berkeley Unix

    Twenty Years of Berkeley Unix: From AT&T-Owned to Freely Redistributable (by Marshall Kirk McKusick)
   
From:
http://www.oreilly.com/catalog/opensources/book/kirkmck.html
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec1]Early History[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec2]Early Distributions[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec3]VAX Unix[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec4]DARPA Support[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec5]4.2BSD[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec6]4.3BSD[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec7]Networking, Release 1[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec8]4.3BSD-Reno[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec9]Networking, Release 2[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec10]The Lawsuit[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec11]4.4BSD[/url]
[url=file:///C:/lgfang/myhome/homepage/tmp/old/0610/os-bsd-20-years.html#sec12]4.4BSD-Lite, Release 2[/url]
Early History
Ken Thompson and Dennis Ritchie presented the first Unix paper at the
Symposium on Operating Systems Principles at Purdue University in
November 1973. Professor Bob Fabry, of the University of California at
Berkeley, was in attendance and immediately became interested in
obtaining a copy of the system to experiment with at Berkeley.
At the time, Berkeley had only large mainframe computer systems doing
batch processing, so the first order of business was to get a PDP-11/45
suitable for running with the then-current Version 4 of Unix. The
Computer Science Department at Berkeley, together with the Mathematics
Department and the Statistics Department, were able to jointly purchase
a PDP-11/45. In January 1974, a Version 4 tape was delivered and Unix
was installed by graduate student Keith Standiford.
Although Ken Thompson at Purdue was not involved in the installation at
Berkeley as he had been for most systems up to that time, his expertise
was soon needed to determine the cause of several strange system
crashes. Because Berkeley had only a 300-baud acoustic-coupled modem
without auto answer capability, Thompson would call Standiford in the
machine room and have him insert the phone into the modem; in this way
Thompson was able to remotely debug crash dumps from New Jersey.
Many of the crashes were caused by the disk controller's inability to
reliably do overlapped seeks, contrary to the documentation. Berkeley's
11/45 was among the first systems that Thompson had encountered that had

标签：

版权申明：本站文章部分自网络，如有侵权，请联系：west999com@outlook.com
特别注意：本站所有转载文章言论不代表本站观点，本站所提供的摄影照片，插画，设计作品，如需使用，请与原作者联系，版权归原作者所有