The size of the address bus in a computer dictates the amount of memory that can be addressed by the computer. For example, a 16-bit address bus would be able to utilize 2¹⁶ bits of memory which is equivalent to 8 KB (since 1 KB = 1024 bytes and 1 byte = 8 bits)

How many memory locations can be accessed by a system with a 32-bit address bus? Express your answer in GB.

How many memory locations can be accessed by a system with a 64-bit address bus? Express your answer in GB.