address register


address register

[′ad·res ‚rej·ə·stər] (computer science) A register wherein the address part of an instruction is stored by a computer.

address register

A high-speed circuit in a computing device that holds the addresses of data to be processed or of the next instruction to be executed. The number of bits in the register determines the amount of memory that can be addressed. For example, a 32-bit register can address 4GB. See flat address space and binary values.