Computer Science - Operating Systems Concepts - Discussion

MAR emits instruction to address bus so that the specific cell in the memory is activated. MAR also emits READ or WRITE command to control bus. MBR emit data for WRITE actions to data bus.

What is the difference between MAR and MBR?

In a computer, the Memory Address Register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU or the address to which data will be sent and stored. In other words, MAR holds the memory location of data that needs to be accessed.

@Priya_M.

It is Memory Address Register.

Memory Address Register.

What is "MAR"?

Are the data's residing in MBR coming from ready queue or from job queue?

A memory buffer is a part of a computer system that store little information and are available when needed this information are stored in registers.

A Memory Buffer Register (MBR) is the register in a computer's processor, or central processing unit, CPU, that stores the data being transferred to and from the immediate access store. It acts as a buffer allowing the processor and memory units to act independently without being affected by minor differences in operation. A data item will be copied to the MBR ready for use at the next clock cycle, when it can be either used by the processor or stored in main memory.