Final answer:
A master word clock source is connected to the motherboard, which is the central hub that interconnects all computer components and regulates system timing.
Step-by-step explanation:
A master word clock source serves as the primary temporal reference for a computer system and is commonly linked to the motherboard. The motherboard, functioning as the central nexus, establishes connections among essential components such as the CPU, RAM, and storage devices. This synchronization is particularly vital in digital audio or video setups. However, for routine computer functions, the motherboard's inherent system clock takes charge of coordinating and overseeing the temporal aspects of communication between diverse elements. Essentially, the master word clock source, integrated into the motherboard, plays a pivotal role in maintaining precision and coherence in the timing mechanisms of the entire computer system, ensuring seamless operation and inter-component coordination.