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Unformatted text preview: Jelena Mamenko Operating Systems Lecture Notes on Operating Systems 21 Acorn Archimedes & RiscPC Atari ST BeOS BeBox Pegasos NEC PC-9800 (At one time, in Japan) NeXT workstations Sun SPARCstation SGI workstations like the SGI Indigo and SGI Onyx The term "personal computer" is often avoided by advocates of the above computer systems, ostensibly because of the association it has to the "PC" in "IBM PC". 19 Disk operating system Disk Operating System (specifically) and disk operating system (generically), most often abbreviated as DOS (not to be confused with the DOS family of disk operating systems for the IBM PC compatible platform), refer to operating system software used in most computers that provides the abstraction and management of secondary storage devices and the information on them (e.g., file systems for organizing files of all sorts). Such software is referred to as a disk operating system when the storage devices it manages are made of rotating platters (such as hard disks or floppy...
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- Spring '09
- Operating Systems