Data Communication and Computer Network
About the Tutorial
This tutorial gives very good understanding on Data Communication and Computer
Networks. After completing this tutorial, you will find yourself at a moderate level
of expertise in knowing DCN, from where you can take yourself to next levels.
This tutorial is prepared for the beginners to help them understand Data
Communication and Computer Networks.
Before proceeding with this tutorial, you need a basic understanding of Computer.
You should know the basics of input and output devices, primary and secondary
memory, and operating system.