Which of the following refers to the communication lines used to transmit data between different major components of a computer system:

Correct option is A

A bus refers to the set of communication lines or pathways that transmit data, addresses, and control signals between the major components of a computer system, such as the CPU, memory, and I/O devices.

Important Key Points:

1. Bus:
• Acts as a shared communication pathway within a computer.
• Types of buses: Data Bus (transfers data), Address Bus (transfers addresses), and Control Bus (transfers control signals).
2. Modern Bus Examples: Include PCIe, USB, and SATA for data transfer in modern computers.
3. Bus Width: Determines how much data can be transmitted simultaneously (e.g., 32-bit, 64-bit).
4. System Bus Architecture: Combines address, data, and control buses to enable seamless communication between system components.

Knowledge Booster:

• Signal: Represents the electrical impulses used for communication but not the communication line itself.
• Barrier and Path: These terms do not specifically define communication lines in computer systems.