A PC motherboard can also be referred to as a mainboard, system board, or logic board. The term mainboard emphasizes the component's significance in connecting all computer hardware components together. The term system board emphasizes the role of the component as the backbone of the computer's entire system. The term logic board emphasizes the electronic circuitry that controls the flow of data and signals within the component. Other related terms include motherboard PCB (printed circuit board), which refers to the physical board that constitutes the mainboard, and chipset, which refers to the collection of chips that manage communication between the CPU, RAM, and other components on the motherboard.