What is another term for the motherboard?

The term "system board" is a commonly used synonym for the motherboard. The motherboard serves as the main circuit board within a computer, housing the CPU (central processing unit), memory, and various connectors for other peripherals and components. By referring to it as a system board, it emphasizes its role as the backbone of the system that connects all parts of the computer together, facilitating communication and power among them.

This terminology reflects the integral nature of the motherboard in the overall architecture of the computer, making "system board" an appropriate alternative.