Question

Which of following is not a valid bus in computer system ?
A. Data Bus
B. Memory Bus
C. Address Bus
D. System Bus

Answer 1

Answer:

Explanation: which of the following is not a. Type of a bus?

Answer 2

System Bus is not a valid bus in computer system. (Option D)

Address bus :

• The address bus is a type of computer bus that aids in the transfer of a physical memory address. It has a binary representation and allows the data bus to access storage.
• It is unidirectional, meaning it can only send and receive data in one direction. The address bus is used by the CPU and DMA (direct memory access) to locate physical addresses for communication, which aids in reading and writing commands.
• The computer processor uses the address bus to read and write data from memory. When access is required, it defines the individual memory block of the physical address.

Data bus :

• The data bus aids in the transmission of data from one device to another. The data bus is bidirectional and aids in data transmission and reception. It sends and receives data in both directions.
• The data bus transports the information and stores it in a designated spot. It facilitates the transfer of data between computer components.
• Wires and optical fibre are the hardware components of the data bus. It has 83264 lines that represent the data bus width. The width of a data bus is the rate at which data is transferred. The system performance is also determined by the width of the data bus, and increasing the number of lines will be costly.

Memory bus:

• The memory bus is a kind of computer bus that joins electrical components and allows data and address transfers from the main memory to the central processing unit (CPU) or a memory controller. It is normally in the form of a series of wires or conductors.
• It's one of a PC's transport buses, which are utilised for high-speed data routing and information transfer to and from various portions of the system.
• Newly designed memory buses connect directly to dynamic random access memory (DRAM) chips rather than passing via many controllers to eliminate time delays.