OSI LAYERS

Hi, To every one. I am Sheik, I've been in to networking field for the past 1 year. Networking is one my favourite subject, So I have planned share the info's that I've learnt about Networking.
There are totally 7 layers in the OSI model. They are:
1.Application Layer
2.Presentation Layer
3.Session Layer
4.Transport Layer
5.Network Layer
6.DataLink Layer
7.Physical Layer