Question

1). A 32-bit address bus allows access io a memory of capacity
(A) 32 MB
(B) 64 MB​

Answer 1

Answer:

32 MB allows to access io memory

Answer 2

Answer:

A 32-bit address bus allows access to a memory of capacity of 4GB

Step-by-step explanation:

A 20-bit address bus can address up to $2^{20}$ addresses (1 MB). A 32-bit address bus can address up to $2^{32}$ addresses (4GB). The units used for computers for defining memory are B (Bytes), kB (kiloBytes), MB (megaBytes) and GB (gigabytes).