Motherboard (noun)

1. A main printed circuit board in a computer that houses the central processing unit (CPU), memory, and other components of a computer system.
2. A large printed circuit board that holds and interconnects the various components of a computer or other digital device.

Origin:

Derived from the words 'mother' and 'board', symbolizing the central and most important circuit board in a computer.

Examples:

1. The motherboard is the most important component of a computer, as it holds all the other parts together.
2. The motherboard determines the speed, capacity and overall performance of a computer.
3. The motherboard of a laptop is usually smaller than that of a desktop computer.
4. The new motherboard allowed for better and faster data transfer among the computer components.
5. Upgrading the motherboard is a complex and time-consuming process, requiring technical expertise and specialized tools.