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Two roles of operating systems Shell and GUI, CPU modes (Kernel mode and user mode), Time and space multiplexing Multiprogramming and SPOOLing Program counter and
Two roles of operating systems
Shell and GUI, CPU modes (Kernel mode and user mode), Time and space multiplexing
Multiprogramming and SPOOLing
Program counter and PSW, Cash hit, RAM, ROM, Interrupt, BIOS
Process, interprocess communication, UID/GID, file, directory, path name, working directory, block/ character special files
System Calls, TRAP instruction
diogram ?
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