Saturday 23 September 2017

OSI Model

OSI Model :-

What is OSI model:-
·      It stands for Open System Interconnection.
·   International Standard Organisation establish a committee in 1977 to develop an architecture for computer connection.
·      It is a reference model.
·      In 1984 OSI was approved is an international standard for communication architecture.
·   The term OPEN denotes the ability to connect any two system which conforms to the reference model & associate standard.
·      It consist 7 layer.
·      Each layer has a different but specific processing function.