One role of the operating system is to schedule and allocate system resources.
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Q48: A bus master is any device in
Q49: In some computer systems only the CPU
Q50: Bus master use interrupts to gain control
Q51: One important class of bus master is
Q52: DMA allows the CPU to process data
Q54: Multitasking allows a single processor to run
Q55: Processors have supervisor and user states to
Q56: A system device that handles many details
Q57: One type of system service provided by
Q58: Microcontrollers are a type of general purpose
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