OSI MODEL

The International Standards Organization (ISO) established in 1947 is a multinational body dedicated to worldwide agreement on international standards. An ISO standard is the Open Systems Interconnection (OSI) model which was first introduced in the late 1 970s. This model is the highest level of abstraction in the OSI scheme. This paper describes briefly about the OSI Model. Then it tells about the various layers of OSI Reference Model present in its layered framework