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10 Cards in this Set
- Front
- Back
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The I/O processor controls what transfers?
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The transfer of information between main memory and the external equipment.
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Changes to input and output control and data signal voltages are functions of what device?
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IOA (Input/output Adapter)
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What is the function of any I/O operation?
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To exchange information between equipment.
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What represents alphabetic and numeric information exchanged with computers?
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Data Words
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What specifies an action to be accomplished by an external equipment?
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Control words
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The actual execution of chaining instructions is independent of the CPU?
True of false |
True
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What does DMA stand for?
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Direct Memory Access
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The main advantage of direct memory access is which of the following?
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Speed
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When the CPU and the DMA attempt to access main memory simultaneously, the CPU has priority.
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False, the DMA will have priority.
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The technique used when more than one peripheral device is connected to a single port/channel is known by which of the following terms?
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Daisy chaining
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