Modifying the Operating System program for a particular machine. The goal is to include all the necessary pieces, but not too many extra ones.
·Typically a System can support many possible devices, but any one installation has only a few of these possibilities.
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·Plug and play allows for detection of devices and automatic inclusion of the code (drivers) necessary to drive these devices.
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·A sysgen is usually a link of many OS routines/modules in order to produce an executable containing the code to run the drivers.
