MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is transferred down the data bus?
A
Data only
B
Addresses only
C
Data
D
Instructions and Addresses
E
Data and Instructions
Explanation: 

Detailed explanation-1: -Data bus-carries the data between the processor and other components. The data bus is bidirectional . Control bus-carries control signals from the processor to other components. The control bus also carries the clock’s pulses.

Detailed explanation-2: -A data bus can transfer data to and from the memory of a computer, or into or out of the central processing unit (CPU) that acts as the device’s “engine.” A data bus can also transfer information between two computers.

Detailed explanation-3: -The Data Bus carries Instructions and Data to and from the memory. The Address Bus carries information about where in memory the data is coming from or going to. The Control Bus is used to tell the memory which way data is going (read/write).

Detailed explanation-4: -Data transfer instructions are the instructions which transfers data in the microprocessor. They are also called copy instructions. Branching instructions refer to the act of switching execution to a different instruction sequence as a result of executing a branch instruction.

Detailed explanation-5: -Data Address Bus: It carries the address of data from the processor to the main memory system. Instruction Bus: It carries instructions among the main memory system, processor, and I/O devices.

There is 1 question to complete.