What is Multi-Programming?

Multi programming is the rapid switching of the CPU between multiple processes in memory . It is done only when the currently running process request I/O, or terminates. It was commonly used to keep the CPU busy while one or more processes are doing I\O.

Multi programming is the rapid switching of the CPU between multiple processes in memory . It is done only when the currently running process request I/O, or terminates. It was commonly used to keep the CPU busy while one or more processes are dping I\O.

It's good to be able to do a few things at once, it saves time by filling in the gaps of waiting.

Multiprogramming is a rudimentary form of parallel processing in which several programs are run at the same time on a uniprocessor. Since there is only one processor, there can be no true simultaneous execution of different programs. Instead, the operating system executes part of one program, then part of another, and so on. To the user it appears that all programs are executing at the same time.