What is the main circuit board called that connects the various components of a computer?

The main circuit board that connects the various components of a computer is known as the motherboard. This board serves as the central hub for the computer's system, providing the necessary circuitry to allow communication between the CPU, RAM, storage devices, and other peripherals. It houses the chipset that manages data flow between the processor and the other components, as well as slots for memory and expansion cards.

Additionally, the motherboard typically includes connectors for power supply, as well as various ports for input and output devices. Its design and layout are crucial for the overall functionality and performance of the computer. Other components like the power supply, heat sink, and graphics card, while essential to computer operation, serve specific roles and do not fulfill the overall central connectivity function that the motherboard provides.