MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -The address bus is a set of wires that connects the CPU to the main memory and is used to identify addresses in the main memory. Data flows in only one direction from the CPU to the memory or from the microprocessor to the input/output devices. It is uni-directional.

Detailed explanation-2: -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-3: -There are three types of buses. 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-4: -Address bus It is concerned with passing an address one way, from the CPU to RAM. The sole purpose of an address bus is to identify the address of the location in cache or main memory that is to be read from or written to. Each location in memory will have its own unique address, this is known as addressability.

Detailed explanation-5: -Detailed Solution The address bus is unidirectional because the microprocessor addresses a specific memory location of the system. No outside devices can write into the Microprocessor. A data bus is bidirectional because the Microprocessor can read data from memory or write data to the memory.