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• A full-duplex(FDX) system, or somethings called double-duplex(HDX), allows communication in both directions, and unlike half-duplex, allows this to happen simultaneously.

• The Internet Engineering Task Force (IETF) is a large open international communicty of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and the smooth operation of the Internet.

• A is a publication from the Internet Society and its associated bodies, most prominently the Internet Engineering Task Force (IETF), the pricipal techinical development and standards-setting bodies for the Internet.

• is an interface description language (IDL) format for describes appication programming interfaces (APIs) that are intended to be implemented in web browsers.

• The is the main international standards organization for the World Wide Web.

  Founded in 1994.