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software (system software (utility software (memory management (when…
software
system software
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utility software
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memory management
when programs are loaded. the operating system decides where
they are held in memory. over time the memory becomes fragmented as programs are loaded and closed because they use
different amounts of memory. the operating system must keep track of different programs fragments. when the memory is full, the operating system uses virtual memory.
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device drivers
translating operating system instructions into commands that the hardware will understand. each peripheral needs a device driver. many are already built into the operating system
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multitasking
running multiple applications at the same time by giving each application a small time-slice of processor time.
this allows more than one program to be held in memory at a time. and data hared between them such as copy and paste. it also enables you to listen to music on your PC at the same time as word processing