Which is NOT a function of the main circuit board?

The main circuit board, commonly known as the motherboard, plays a crucial role in the overall functioning of a computer system. Among its key functions is connecting and supporting the CPU, allowing it to communicate with other hardware components. It is also responsible for powering various components by distributing power from the power supply unit to the CPU, RAM, and other attached devices. Additionally, the motherboard facilitates communication between these components via buses and other connectors, ensuring data can move freely across the system.

Storing data is not a primary function of the main circuit board. Instead, data is typically stored on separate storage devices such as hard drives (HDDs), solid-state drives (SSDs), or removable media. The motherboard may manage the data transfer between the CPU and these storage devices, but it does not retain information itself. This distinction is essential when understanding the various roles of computer hardware.