Difference between multitasking, multithreading and multiprocessing? [closed]

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Paraphrasing wikipedia:

Multiprogramming – A computer running more than one program at a time (like running Excel and Firefox simultaneously)
http://en.wikipedia.org/wiki/Multiprogramming

Multiprocessing – A computer using more than one CPU at a time
http://en.wikipedia.org/wiki/Multiprocessing

Multitasking – Tasks sharing a common resource (like 1 CPU)
http://en.wikipedia.org/wiki/Computer_multitasking#Multithreading

  • Thus, something like multithreading is an extension of multitasking.

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