Difference between multitasking, multithreading and multiprocessing?

Question

Whats the difference between multitasking, multiprogramming & multiprocessing

This comes regularly for my university OS exams and I can\'t find a good answer. I

Answer 1

Multitasking:- It handling a number of tasks or jobs simultaneously. In that case user can interact with the system.

Multiprogramming:- It handling a several programs at the same time & it cannot interact with the system, every thing is decided by the OS(Operating System).