Presentation Layer
This layer is concerned with the syntax and semantics of the information transmitted. In order to make it possible for computers with different data representations to communicate data structures to be exchanged can be defined in an abstract way along with standard encoding.
It also manages these abstract data structures and allows a higher level of data structures to be defined as an exchange. It encodes the data in the standard agreed way(network format). Suppose there are two machines A and B following 'Big Endian' and the other 'Little Endian' for data representation.
This layer ensures that the data transmitted by one gets converted in a form compatible with the machine. This layer is concerned with the syntax and semantics of the information transmitted. In order to make it possible for computers with different data representations to communicate data structures to be exchanged can be defined in an abstract way along with standard encoding.
It also manages these abstract data structures and allows a higher level of data structures to be defined as an exchange. Other functions include compression, encryption, etc.
