Dear Readers: HWS has recently started a new project for the students of engineering ====> The Engineering Projects

Write at HWS !!!

Guest Posting

Saturday, May 21, 2011

COMPUTER NETWORKS : CHAPTER 2 - some more basics

COMPUTER NETWORKS : CHAPTER 2 -basic communication

I hope you read first chapter , well if you already know that than no problem .
we will start chapter 2 and i will be writing about how devices communicate in a LAN and how they communicate to cloud.


Ok now u are in a LAN , then you must see a cable connected to your laptop or PC or watever device is there in your network.Those cables are called Ethernet Cable , and that cable is connected to NIC (network interface card ). NIC is installed in your computer , the port to which cable is connected is a part of NIC .
The cable is then connected to a SWITCH . A switch connect all the devices within your network and then in most cases switch is connected to a ROUTER .A ROUTER connects your network to outside world, which may be INTERNET or to another network.
So this was a brief infra of your LAN.


i have used the term CLOUD. U must have heard this word (not sky clouds LOL).Cloud is a common word by which we refer a very large
network or a very large collection of networks, which is internet.
In cloud there are a hell lot of networks which are interconnected , which are distributed all over the globe.
You can find all the servers in cloud like FTP servers, HTTP servers, SMTP servers, DHCP servers etc.


I know all of you know this but just for a quick revision m going through how we memories are defined in computers:
smallest unit is a BIT.
kilobyte = 1024*byte
megabyte = 1024*kilobyte
gigabyte = 1024*megabyte
terabyte = 1024*gigabyte

IMP NOTE - Whenever you say your connection speed is some Kbps or some Mbps , means your connection speed is some kilobit per second or some megabit per second
not kilobyte or megabyte .


a rate of data transfer, bit rate or throughput, measured in bits per second (bps)
or u can say this how wide the road is


the delay of an IP packet within an IP network
or u can say how fast cars are moving.

So thats all for this chapter . Feel free to ask. Stay connected

P.S- the symbols for router and switch shown are standard symbol . keep them in mind


About the Author

I am XEO Hacker, the founder of Hack With Style (HWS). I am blogging since 2009 before that I just search things and now I am sharing my knowledge through this plateform.I'm also a freelance writer on topics related to Website Hacking,Website Optimization (SEO), blogger customizations and making money online.
In 61 people's circles

Subscribe To Get FREE Tutorials!

Respected Readers:
As a 21 year old student, the only income I rely on is my pocket money. Bearing the running costs of HWS Blog has become really difficult. We educate thousands of bloggers a week with our tutorials. To help us go forward with the same spirit, a small contribution from your side will highly be appreciated.


BlueHost is definitely the best hosting provider with plans for all of your hosting needs.

Confused? Feel free to ask

Your feedback is always appreciated. I will try to reply to your queries as soon as time allows.
Please do not spam Spam comments will be deleted immediately upon my review.

XEO Hacker

Post a Comment

Twitter Delicious Facebook Digg Stumbleupon Favorites More


Recent Posts

Join Me On Facebook

700+ Followers


meet women in Ukraine contatore visite website counter

Recent Comments

Follow Me On Twitter

1112+ Followers