What are the advantages and disadvantages of multiprogramming?

Question

What happens after you write “a.out” and press enter. What are the functionality performed by the OS after executable file is created of your code.

Answer 1

Multi-programming provides best hardware resource utilization. When one process gets completed then another process is scheduled that was waiting in the queue. I don't see any disadvantage of multi-programming.

Comments

One small disadvantage I see is - context switching which is a costly and non-productive operation. Sometimes it can also happen context switching is more time consuming then the time saved by multiprogramming.

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If I am correct, your statements are somewhat related to multitasking not the multi-programming. Context switching is related to multitasking.

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Good catch

Answer 2

Advantages
1. High CPU utilization.
2. It appears that many programs are allotted CPU almost concurrently.
Disadvantages
1. CPU scheduling is required.
2. To accommodate several jobs in memory, memory management is essential.