A CPU socket is a specialized connector on a computer's motherboard that holds the CPU (Central Processing Unit) in place. It allows the CPU to communicate with other components of the computer, such as memory and storage. Different types of CPU sockets are designed for specific CPU models, ensuring compatibility and optimal performance. The design of a CPU socket includes various pins or pads that align with corresponding contacts on the CPU. This connection is crucial for the electrical signals needed for processing data. Common CPU socket types include LGA, PGA, and BGA, each serving different families of processors from manufacturers like Intel and AMD.