The presentation layer handles the conversion of data between a Standards-based or platform independant formats to a format understood by the local machine. This allows for data to be transported between devices and still be understood.

The presentation layer performs the folowing functions:

  1. Communication with the application layer above.
  2. Translation of data conforming to cross-platform standards into formats understood by the local machine.
  3. Communication with the session layer below.

Examples of Presentation Layer Functions

  • Conversion of a Sun .RAS raster graphic to JPG.
  • Conversion of ASCII to IBM EBCDIC
  • Conversion of .PICT on a MAC to .jpg
  • Conversion of .wav to .mp3


< The Session Layer  |  Index |  The Application Layer >

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