Differences between the OSI and TCP/IP model are as follows :
|It is developed by ISO (International Standard Organization)
|It is developed by ARPANET (Advanced Research Project Agency Network).
|OSI model provides a clear distinction between interfaces, services, and protocols.
|TCP/IP doesn’t have any clear distinguishing points between services, interfaces, and protocols.
|OSI refers to Open Systems Interconnection.
|TCP refers to Transmission Control Protocol.
|OSI uses the network layer to define routing standards and protocols.
|TCP/IP uses only the Internet layer.
|OSI follows a vertical approach.
|TCP/IP follows a horizontal approach.
|OSI model use two separate layers physical and data link to define the functionality of the bottom layers.
|TCP/IP uses only one layer (link).
|OSI layers have seven layers.
|TCP/IP has four layers.
|OSI model, the transport layer is only connection-oriented.
|A layer of the TCP/IP model is both connection-oriented and connectionless.
|In the OSI model, the data link layer and physical are separate layers.
|In TCP, physical and data link are both combined as a single host-to-network layer.
|Session and presentation layers are not a part of the TCP model.
|There is no session and presentation layer in TCP model.
|It is defined after the advent of the Internet.
|It is defined before the advent of the internet.
|The minimum size of the OSI header is 5 bytes.
|Minimum header size is 20 bytes.