Berkeley sockets Berkeley套接字
（重定向自BSD socket）
![Flow diagram of client-server transaction using sockets with the Transmission Control Protocol (TCP).](/Images/godic/202501/02/InternetSocketBasicDiagram_zhtw4602.png")
Berkeley sockets is an application programming interface (API) for Internet sockets and Unix domain sockets, used for inter-process communication (IPC). It is commonly implemented as a library of linkable modules. It originated with the 4.2BSD Unix released in 1983.