Definition: Multiprogramming operating system has ability to execute multiple programs with using of only one processor machine. In multiprogramming operating system, if single program gets to wait for I/O transfer, then other programs are always ready to CPU utilization.
What is essential for multiprogramming operating system?
special support from processor is essential.
How multiprogramming is implemented in operating system?
To implement multiprogramming, you will need to modify this function.
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To start a new program in a multiprogramming system,
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To start a new program in a multiprogramming system,
- find a free memory segment for the process.
- obtain and setup a PCB for the process.
- load the program into the free memory segment.
- place the process' PCB into the ready queue.
