"Socket编程实践与原理：C语言实现与应用"

The presentation "Socket programming in C" provides an introduction to the concept of socket programming and its application in the C programming language. Socket programming involves the use of the Socket API, which was introduced in BSD4.1 UNIX in 1981. It allows for the creation, use, and release of sockets by applications in a client/server paradigm. There are two types of transport services available through the socket API: unreliable datagram and reliable, byte stream-oriented. Sockets serve as a host-local, application-created, OS-controlled interface that allows application processes to send and receive messages to and from other application processes. The goal of socket programming is to learn how to build client/server applications that communicate with each other. By using the socket API in C, developers can establish a connection between client and server applications, enabling them to exchange data and information in a reliable and efficient manner. Overall, socket programming in C is a fundamental concept in computer networking that allows for the development of robust and secure client/server applications. Through an understanding of the socket API and its implementation in C, developers can create powerful networked applications that cater to a wide range of communication needs.