Difference between multitasking and multiprocessing

Short difference between multi-tasking, multi-user, multi- processing and time sharing.......

Multi-user :is a term that defines an operating system or application
software that allows concurrent access by multiple users can work on
time or different time.
Time-sharing systems are multi-user systems.

Multiprocessing : is the use of two or more central processing
units CPUs) within a single computer system.(in short - multiple jobs
by several CPUs or ability to use more than one processor (CPU), on a
single machine.)

Multi-programming : multiple programs can be run on the same
system.

Muti tasking : an logical extension of multi programming to perform
multiple task at a same time or at different time or multi Tasking
-is used when more than one applications/programs/tasks are being
run on a single processor.

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