Computer Science for IGCSE & O level - Hardware (Section 9 - No. 21)
Which of the following is true about the relationship between the address bus and memory capacity?
The wider the address bus, the smaller the memory capacity.
The narrower the address bus, the larger the memory capacity.
The wider the address bus, the larger the memory capacity.
The address bus width has no impact on memory capacity.
Explication
The wider the address bus, the more memory locations that can be uniquely addressed and thus, the larger the overall memory capacity.