Answer Posted / amitshiknis

Multitasking: The ability of an OS to do more then one
thing at atime. for instance, you can be downloading a
large file and still use another program to do something,
like write a book.

Multiuser: A computer system the can handle more then one
user at a time. Windows is not a multiuser OS. It can
handle only one user at a time.

Multiprocessing: The chip in new computers is able to do
more then one task at a time because there is more then one
processing unit on/in the chip.

Thanks,
Amit Shiknis

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