HELP! * GREY=local LOCAL HTML version of Foils prepared 31 January97

Foil 12 Layering - an example

From Introduction To Multimedia Internet Systems CPS640 MultiMedia and WWW -- Spring 97 Semester. by Marek Podgorny * See also color IMAGE
Need secretary to get another secretary, to agree on the language for their conversation and to request your interlocutor. This is layer 4 - transport
Need a common language for your own conversation. This is layer 6 - presentation
Now you can talk business - this is layer 7 - application
Each layer depends/rides on top of other layers.

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Page produced by wwwfoil on Wed Feb 19 1997