Socket types refer to the different configurations of electrical connectors used in various devices. Common socket types include USB, HDMI, and Ethernet, each designed for specific functions like data transfer, video output, or network connectivity. These sockets ensure compatibility between devices and their respective cables. In addition to standard sockets, there are specialized types such as audio jacks for sound equipment and power sockets for electrical appliances. Understanding socket types is essential for selecting the right cables and connectors, ensuring proper functionality and performance in electronic systems.