Q.Which part of the system bus carries the location in memory that the CPU wants to read from or write to?
(A) Data bus
(B) Address bus
(C) Control bus
(D) USB port

Each part of the system bus carries a different kind of information; the one dealing with locations is named after them.

Section f explains that the system bus has three parts, each carrying a different kind of information. The address bus carries the address — the location in memory or in a device — that the CPU wants to read from or write to. It is unidirectional, since addresses flow out from the CPU. So option (B) is correct. …

Keep the three buses distinct by what each carries: data bus -> data, address bus -> location, control bus -> commands. Confusing the address bus (lo …