What term describes the speed at which a motherboard operates, expressed in MHz?

The term that describes the speed at which a motherboard operates, expressed in MHz, is clock speed. Clock speed indicates how many cycles per second the motherboard's clock can execute, which affects how quickly the processor and the overall system can perform tasks. It’s a critical measure because higher clock speeds generally allow for faster data processing and better performance in computing tasks.

Clock speed is typically expressed in megahertz (MHz) or gigahertz (GHz), denoting millions or billions of cycles per second, respectively. Understanding clock speed helps in evaluating the performance capabilities of a motherboard and its compatibility with other components, like the CPU and RAM, ensuring optimal performance in a computing environment.