Windows Sockets
Windows Sockets, or Winsock as it's commonly known, is Windows' implementation of BSD Sockets. As I mentioned earlier, BSD Sockets is an API that became the standard for Internet connectivity on UNIX systems in the 1980s. By providing API-level compatibility with Sockets, Windows makes porting UNIX network apps relatively easy. In addition to supporting functionality already present in BSD Sockets, Winsock also includes some Microsoft-specific enhancements. We'll talk about a few of these in just a moment.
Like BSD Sockets, Winsock supports both reliable (connection-oriented) communication and unreliable (connectionless) communication. These are known as stream and datagram connections, respectively. Winsock also supports scatter-gather ...
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