Question

If the size of the program counter is 16 bits, what can be the maximum size of the memory in computer architecture provided the data width is 8 bits?

Answer 1

The size of the program counter (16 bits) sets the maximum number of addressable memory cells – 2¹⁶. The size of each memory cell is 8 bits (one byte). So, the maximum size of memory is 2¹⁶ bytes (65,536 bytes – 64kB).