MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following bus systems is used to designate the source or destination of the data on the bus itself?
A
control bus
B
data bus
C
address bus
D
system bus
Explanation: 

Detailed explanation-1: -As the name suggests, address bus is used to carry address from CPU to memory/IO devices. It is used to identify the particular location in memory. It carries the source or destination address of data i.e. where to store or from where to retrieve the data.

Detailed explanation-2: -The address bus is used to designate the source and destination of data in data bus. In a computer system, each peripheral or memory location is identified by a binary number called an address. The width of the address bus determines the maximum possible memory capacity of the system.

Detailed explanation-3: -Data bus: The data bus carries the actual data between the computer’s main processor, the memory and all other internal hardware components. It operates between computer parts or devices to increase the flow of data by transferring data in or out of the CPU or from one device to another.

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.

There is 1 question to complete.