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The following are examples of services provided by an operating system:
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Context Switching & Scheduling,
which allocate a process CPU time to execute its instructions.
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Memory Management,
which deals with allocating memory to processes.
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Interprocess Communication,
which deals with facilities to allow concurrently running processes to communicate
with each other.
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File Systems,
which provide higher level files out of low level unstructured data on a disk.
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High level I/O facilities,
which free a process from the low-level details of interrupt handling.
Prasun Dewan
Tue Jan 13 12:23:19 EST 2004