A memory with 8-bit data bus and 8-bit address bus can store a ma

A memory with 8-bit data bus and 8-bit address bus can store a ma
| A memory with 8-bit data bus and 8-bit address bus can store a maximum of

A. 256 bytes

B. 256 bits

C. 1K bytes

D. 512 bytes

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

Concept:

  • The maximum number of bytes directly addressable in a computer depends on the number of bits in the memory address.
  • For an n-bit address bus, the memory can store:

          M ≤ 2n Bytes, since an 8-bit represents a byte.

Calculation:

Given Address bus = 8-bit

A maximum number of bytes the memory can store will be:

M = 28 Bytes

M = 256 Bytes

A typical representation of memory locations for an 8-bit address bus is as shown: