Data communications refers to the transmission of this digital data
between two or more computers and a computer network or data network is a
telecommunications network that allows computers to exchange data. The
physical connection between networked computing
devices is established
using either cable media or wireless media. The best-known computer
network is the Internet.
This tutorial will teach you basics of Data Communication and
Computer Network (DCN) and will also take you through various advance
concepts related to Data Communication and Computer Network.
Audience
This tutorial has been prepared for the computer science graduates to
help them understand the basic to advanced concepts related to Data
Communication and Computer Networking. After completing this tutorial
you will find yourself at a moderate level of expertise in Data
Communication and Computer Networking from where you can take yourself
to next levels.
Prerequisites
Before you start proceeding with this tutorial, I'm making an
assumption that you are already aware about basic computer concepts like
what is keyboard, mouse, monitor, input, putput, primary memory and
secondary memory etc. If you are not well aware of these concepts then I
will suggest to go through our short tutorial on
Computer Fundamentals.
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