Answer Posted / akshita

1. multi-user: it implies that many users can work
simultaneously...every user working thinks that he is the
sole occupant of the computer resources but in reality every
user is alloted cpu time and other resources according to
cpu scheduling techniques ..and hence all computer resources
are shared by users working at same point of time..

2. multi-tasking: it implies that multiple tasks could be
performed simultaneously...for exammple:if u r working in
windows environment u access internet and u r also listening
songs..and u are working on some document also..

3. time sharing: in this method the cpu allocates every
user a very small time slice or time slot in
micromilliseconds...
when the time slot for a particular user
ends..the the cpu allots same time slot to next process..and
so on..in this way every proess is given time slice in a
circular fashion..

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