Why is spooling necessary for batch multiprogramming?
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spooling stands for
simultaneous peripheral operation on- line.
it is a mechanism to deal with following issue:-
a) to reduce the speed mismatch between slow input / output devices and CPU for better utilisation of the CPU.
b) to convert manually exclusive I/O device into non mutually exclusive I/O devices so that they can be simultaneously used by multiple processes in multiprogramming system.
simultaneous peripheral operation on- line.
it is a mechanism to deal with following issue:-
a) to reduce the speed mismatch between slow input / output devices and CPU for better utilisation of the CPU.
b) to convert manually exclusive I/O device into non mutually exclusive I/O devices so that they can be simultaneously used by multiple processes in multiprogramming system.
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