motherboard
n. countablen. the main circuit board inside a computer. It connects all the important parts like the brain, memory, and other hardware so they can talk to each other.
n. the primary printed circuit board in a computer or other complex electronic system. It houses the central processing unit and memory while providing connectors for other peripherals.
I need to replace the motherboard because the computer won't start.
When building a custom PC, you must ensure the motherboard is compatible with your chosen processor and case size.
The technician identified a blown capacitor on the motherboard, which had been causing intermittent system crashes and data corruption during high-performance tasks.
Compound of mother + board. Attested since 1965.
Often used as a modifier in noun phrases like 'motherboard components' or 'motherboard drivers'.