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\nMultiprogramming leads to the concept of a process.\nMetaphorically,a process is a program's breathing air\nand living space-that is,a running program plus any\nstate needed to continue running it.Time- sharing is\na variation of multi-programming that shares the CPU\nand memory with several interactive users at the same\ntime, giving the illusion that all users have their own\ncomputers. Thus at any instance it should be possible\nto switch from one process to another. This exchange\nis called a process switch or context switch.\n\nReference:\nProtection and Examples of Virtual Memory.\nComputer Architecture: A Quantitative Approach, Third Edition\n<\/pre>\n","protected":false},"excerpt":{"rendered":"context switch Multiprogramming leads to the concept of a process. Metaphorically,a process is a program’s breathing air and living space-that is,a running program plus any state needed to continue running it.Time- sharing is a variation of multi-programming that shares the CPU and memory with several interactive users at the same time, giving the illusion that … <\/p>\n