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7 Cards in this Set
- Front
- Back
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What is the system bus?
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A communication channel that connects all computer system components
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What are the 3 primary components of the system bus?
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address bus
control bus data bus |
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What is a bus master?
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any device that can initiate a transfer across the bus.
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What is the advantage of having devices other than the CPU be a bus master?
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Frees CPU cycles to perform other tasks.
It also allows a form of parallelism in which peripheral to peripheral data transfers can occur simultaneously with instruction execution. |
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What characteristics of the CPU and of the system bus should be balanced to obtain maximum system performance?
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The width of the data bus should equal or exceed CPU word size.
The bus clock rate should match the CPU clock rate, though this is difficult or impossible to achieve. |
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What is a stack?
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An area of memory that holds register values of suspended processes
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Describe the execution of the PUSH and POP operations.
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PUSH copies and increments pointer
POP removes and decrements pointer |
