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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Data bus
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Control bus
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None of the above
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Detailed explanation-1: -The control bus carries signals that control and coordinate all the activities within the computer.
Detailed explanation-2: -The control bus contains a control line for write instructions and a control line for read instructions. When the CPU writes data to the main memory, it transmits a signal to the write command line. The CPU also sends a signal to the read command line when it needs to read.
Detailed explanation-3: -Detailed Solution. The correct answer is Control Bus. Control Bus carries control information between the CPU and other devices within the computer.
Detailed explanation-4: -The control bus carries various synchronisation and control signals, the only one of interest to us being the read/write signal. This is designated R/W (read/not write). During a read cycle, the processor receives data from either memory or a memory-mapped peripheral device.
Detailed explanation-5: -Control bus carries signals that report the status of various devices. This bus is used to indicate whether the CPU is reading from memory or writing to memory. So control bus is a collection of signals that control how the processor communicates with rest of the system.