PPT Slide
Operating System examples
- UNIX: 1st widely-used O/S to be written almost entirely in a high-level language (C); basis for much O/S research and is the birthplace of much of the Internet tools; many versions exist, including some free ones (Linux, FreeBSD)
- Mach: a microkernel-based O/S (small O/S that provides only a basic set of services); OSF/1 uses Mach as it’s base; influenced O/S ideas
- MS/DOS: minimal “operating system” for basic PC (1980 vintage!); beware book’s use of the phrase “open system” (open here = no protection)