A socket, also known as a socket connection, is a method of establishing a network communication between two computers or devices. It is a software interface that enables programs to communicate with each other over a network.

Sockets work by using a combination of an IP address and a port number to identify the destination device or program. The IP address identifies the computer, while the port number identifies the specific program or service running on that computer.

Sockets can be used for various types of network communication, including sending and receiving data, establishing a connection, and terminating a connection. They are widely used in internet-based applications, such as web browsers, email clients, and file transfer programs.

Overall, sockets are a fundamental component of network communication, enabling programs to communicate with each other over a network in a reliable and efficient manner.

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