The Unix Time-sharing System. Chuck Davin Software Design & Engineering CSE 350 Spring 2001. The Unix Time-sharing System. D. M. Ritchie and K. Thompson. The Unix time-sharing system. BSTJ , 57:6 (July-August, 1978), 1905-1929. K. Thompson. Unix implementation.
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The Unix Time-sharing System
Software Design & Engineering
The Unix time-sharing system.
BSTJ, 57:6 (July-August, 1978), 1905-1929.
BSTJ, 57:6 (July-August, 1978), 1931-1946.
February, 1971: PDP-11 Unix first operational.
Familiar epoch: midnight, January 1, 1970.
"The most important role of the system is to provide a file system."
Performance Techniques: caching and read-ahead
"The success of the Unix system is largely due to the fact that it was not designed to meet any predefined objectives.“
Motivation: dissatisfaction with existing facilities.
"Throughout, simplicity has been substituted for efficiency."
"The UNIX kernel is an I/O multiplexer more than a complete operating system. This is as it should be."