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Unformatted text preview: Chapter 1 & 2 Some additional notes… (Reproduced from http://www.unix.org/) Chapter 1 & 2 Some additional notes… • At AT&T / Bells Labs – Thomson & Ritchie created the OS for their own personal use (~1970) – they needed an OS for their game “It was the summer of '69. In fact, my wife went on vacation to my family's place in California.... I allocated a week each to the operating system, the shell, the editor, and the assembler, to reproduce itself, and during the month she was gone, it was totally rewritten in a form that looked like an operating system, with tools that were sort of known, you know, assembler, editor, and shell .... Yeh, essentially one person for a month”. Ken Thompson • academic and research operating system • Initially, pros: flexibility, extensibility, file sharing • Initially, cons: security, robustness, performance • Initially programmed in “B” (predecessor to “C” language) •...
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- Fall '08
- POSIX, Single UNIX Specification, additional notes…, Distribution (BSD)