What is the primary function of a Central Processing Unit (CPU)?

The primary function of a Central Processing Unit (CPU) is to process instructions. The CPU is often referred to as the "brain" of the computer because it executes the instructions that make up a computer program. This involves performing calculations, making decisions based on given data, and coordinating tasks across various components within the computer system, enabling it to function effectively.

While storing data is managed by memory units like RAM and storage drives, providing power is a role taken on by the power supply unit, and connecting peripherals pertains to input/output systems facilitated by other components. In essence, the CPU's ability to interpret and execute instructions is fundamental to the operation of both hardware and software, making its role critical within the architecture of a computer system.