Size of memory mainly depends on the size of the address bus.

The size of memory mainly depends on the size of the address bus because the address bus determines the maximum number of memory locations that can be accessed by the CPU. The size of the address bus is measured in bits, and the number of bits in the address bus determines the maximum number of memory locations that can be addressed. For example, a 32-bit address bus can address up to 4 GB of memory, while a 64-bit address bus can address up to 16 exabytes of memory. Therefore, the size of the address bus directly impacts the size of memory that can be accessed by the CPU.

True