Which of the following is the main circuit board of the computer?a. CPUb. RAMc. Hard drived. Motherboard

The main circuit board of a computer is known as the Motherboard.

Explanation:

1. Definition of Components:

   • CPU (Central Processing Unit): Often referred to as the brain of the computer, it processes instructions and performs calculations but is not the main board itself.
   • RAM (Random Access Memory): This is a type of volatile memory that temporarily stores data for fast access when the computer is running, but it is also not the main circuit board.
   • Hard Drive: This is a data storage device that permanently stores files and documents but does not serve as the circuit board.
   • Motherboard: This is the primary printed circuit board (PCB) in a computer. It houses the CPU, RAM, and other essential components, facilitating communication between them.

2. Connections: The motherboard includes sockets for connecting multiple components, slots for RAM, and interfaces for storage devices. It controls data flow between all components, making it the central hub of the computer's operation.

In conclusion, the correct answer to the question is d. Motherboard.