COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Address bus
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Control bus
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Data bus
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None of the above
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Detailed explanation-1: -The address bus is unidirectional . Data bus-carries the data between the processor and other components. The data bus is bidirectional .
Detailed explanation-2: -Address bus – It is a group of conducting wires which carries address only. Address bus is unidirectional because data flow in one direction, from microprocessor to memory or from microprocessor to Input/output devices (That is, Out of Microprocessor).
Detailed explanation-3: -Why is data bus is bidirectional while address bus is unidirectional ?
Detailed explanation-4: -Address bus is Unidirectional because the microprocessor is addressing a specific memory location. No outside devices can not write into Microprocessor. Data bus is Bidirectional because the Microprocessor can read data from memory or write data to the memory.
Detailed explanation-5: -Data bus is a bidirectional bus.