Three common computer bus types are

Three common computer bus types are

• A. Address, data, control Bus
• B. Address, data, power Bus
• C. Address, power, data Bus
• D. Data, clock, power Bus

Answer: (A)

In practice, the system bus is described by three fundamental sets of lines: the address bus, the data bus, and the control bus. The address bus carries the memory or I/O location the CPU wants to access, so its width determines how many distinct addresses can be visited. The data bus carries the actual information being transferred between the CPU and memory or I/O devices, and its width determines how much data moves per transfer. The control bus carries the signals that coordinate and control the operation—read vs. write commands, device selects, ready/ack signals, and other timing controls—ensuring the right device uses the bus at the right moment. Power lines and clock lines are important, but they’re not considered the three main bus categories used for addressing, data transfer, and coordination. That’s why the address, data, and control trio best describes the common bus types.

In practice, the system bus is described by three fundamental sets of lines: the address bus, the data bus, and the control bus. The address bus carries the memory or I/O location the CPU wants to access, so its width determines how many distinct addresses can be visited. The data bus carries the actual information being transferred between the CPU and memory or I/O devices, and its width determines how much data moves per transfer. The control bus carries the signals that coordinate and control the operation—read vs. write commands, device selects, ready/ack signals, and other timing controls—ensuring the right device uses the bus at the right moment. Power lines and clock lines are important, but they’re not considered the three main bus categories used for addressing, data transfer, and coordination. That’s why the address, data, and control trio best describes the common bus types.