COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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address
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control
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data
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None of the above
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Detailed explanation-1: -The data bus in the 8086 CPU is 16 bits wide and is bi-directional. It can transfer data in both byte and word length to and from the CPU and memory. 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).
Detailed explanation-2: -Control bus-carries control signals from the processor to other components. The control bus also carries the clock’s pulses. The control bus is unidirectional.
Detailed explanation-3: -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.
Detailed explanation-4: -While the address bus carries the information about the device with which the CPU is communicating and the data bus carries the actual data being processed, the control bus carries commands from the CPU and returns status signals from the devices.
Detailed explanation-5: -Generally speaking, the term “bus” in information Technology refers to a system for transmitting data between multiple nodes in a network using a shared transmission path.