Memory Management Device Management File Management Input/Output Management Processor Management Maintenance Of System Clock & Date Security MEMORY MANAGEMENT :- Keep the track of primary memory. Allocates memory when process makes the request. Deallocates the memory when the process is terminated or no longer needs the memory. DEVICE MANAGEMENT :- OS keeps the track of all the devices like input devices, output devices or secondary devices. Allocates and deallocates the device in efficient manner. OS decides when which process gets the device and for how much time FILE MANAGEMENT :- Keeps the track of all the devices like its location use and status. Os decides which file will get the resources. Allocates and deallocates the resources. INPUT/OUTPUT MANAGEMENT :- OS decides when and whom t gives the instructions entered by the input device. It decides when and whom to gives the instructions entered by the output device. PROCESS M...
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