Computer Architecture MCQs — Practice & Prepare

✅ Correct answer: bus A bus is the communication line/pathway that carries data between the CPU, memory, and peripheral devices, acting as the 'highway' along which information travels within a computer system.

✅ Correct answer: Internal bus The internal bus is responsible for connecting components located inside the motherboard itself, such as the CPU and system memory, enabling fast internal data transfer.

✅ Correct answer: address bus The address bus carries the specific memory or I/O device address information, telling the system exactly where data should be read from or written to.

✅ Correct answer: address bus The address bus provides the physical connection between the microprocessor's memory and other parts of the microcomputer, carrying the location information needed to access specific data.

✅ Correct answer: the control bus The read/write control line, which signals whether data should be read from or written to memory, belongs to the control bus, which manages command and timing signals within the system.

✅ Correct answer: External bus The external bus is used to connect different external devices to the computer system, allowing peripherals to communicate with the CPU and memory.

✅ Correct answer: sockets On the motherboard, the connection points where chips are plugged in are referred to as sockets, providing a secure, removable physical and electrical connection for components like the CPU.

✅ Correct answer: Both 'A' and 'B' The Control Unit is responsible for executing computer commands, directing the sequence of operations by managing how instructions are fetched, decoded, and carried out by other components.

✅ Correct answer: fetch The machine cycle specifically includes the fetch, decode, and execute steps (with 'store' being part of a broader instruction cycle in some models) — since none of the listed single options fully captures this, 'None of these' reflects that the complete set together defines the cycle.