User Tools

Site Tools


Chapter 1: Internet, Networks and TCP/IP

Chapter 2: The LINUX operating system - Setting up a Linux Web Server

Chapter 3: Your first webpage, Learning HTML and CSS

Chapter 4: Building Dynamic Websites with PHP in progress

Chapter 5: Web forms under construction

Chapter 6: Developing your first Bioinformatics web application under construction

Chapter 7: The PHP programming language: strings, arrays, functions, cycles, conditional statements, regular expressions under construction

Chapter 8: Sample Bioinformatics Web Applications under construction


This is an old revision of the document!

Internet, Networks and TCP/IP: Introduction

The Internet can be defined as a network of computers networks (indeed a network of networks rather than a network of single computers), distributed on all the globe, that rely on a set of communication protocols collectively known as TCP/IP, that allows communication, exchange, storage of information for it's connected users. Figure 1-1 illustrates the worldwide distribution of the Internet network and the fact that several, often redundant communication paths are available (symbolized by the colored lines in the figure) to connect two nodes of the network.

Figure 1-1: The Internet Network

Image source: internet, unknown. Edited by cellbiol.

Redundancy is a basic feature of the Internet. Back in 1960, the networks that then evolved into the Internet as we are currently familiar with, were commissioned by the Government of United States in order “to build robust, fault-tolerant, and distributed computer networks” (source:wikipedia). The reason for redundancy is that should a node of the network, or a communication route (a wire of some kind) stop working or go down for any reason, the network as a whole will remain up and running. This of course has implications in case of war, or catastrophic natural events.

To get more information on the history and other aspects of the Internet, please visit the Internet page on wikipedia.

Chapter Sections


test36.80.28.105, 2015/07/03 22:37

Well here's a website that had me wait wait, I finally found the website also very contains a lot of benefits in your website is

test36.80.28.105, 2015/07/03 20:46

Terimaksih atas infonya min.

test36.72.105.48, 2015/07/03 04:46

Life is like a time to keep going and never be able to come back again. So making the most of your time as possible

test36.72.64.134, 2015/07/02 22:28

Jumat berkahh :)

test36.72.105.48, 2015/07/02 02:48

Thank you for the information. awaited the latest information .

<a href=“ ”>Obat Infeksi Jamur</a>

<a href=“ ”>Obat Susah Buang Air Besar Anak</a>

<a href=“ ”>Obat Radang Pencernaan</a>

test36.72.123.33, 2015/07/01 21:11

Mangoes can be used as an adjunct to diet to slim down fat.

test36.72.142.106, 2015/07/01 04:10

Makasih atas infonya min.

test180.253.233.180, 2015/06/30 23:24

Makasih gan, salam sukses

test36.72.90.81, 2015/06/30 21:31

test36.72.90.81, 2015/06/30 21:18

informasi yang anda berikan memang sangat bermanfaat sekali kawan, terima kasih banyak atas informasinya thank.

test36.72.132.114, 2015/06/30 02:47

Thank you for your information

test180.253.253.220, 2015/06/29 05:09

<a href=“”>obat jantung lemah anak</a> <a href=“”>Obat HB Alami</a> <a href=“”>obat nyeri otot</a>

test180.253.242.218, 2015/06/28 22:40

Very useful information, the admin may not tired to continue to provide us with information like this.

<a href=“”>Jual Obat Liver Kronis</a>

<a href=“”>Obat Liver Kronis</a>

<a href=“”>Pengobatan Liver Kronis</a>

<a href=“”>Obat Liver Kronis</a>

<a href=“”>Obat Penyakit Liver Pada Pria</a>

test180.253.242.218, 2015/06/27 03:56

semoga bermanfaat

test180.253.246.58, 2015/06/26 21:29

news which is very important and useful |

test36.72.102.3, 2015/06/25 03:38

thank for all

test36.72.103.1, 2015/06/24 04:05

If you are not able to return the favor to this webiste who have provided information, at least give thanks that sincerely.

test117.247.126.89, 2015/04/22 06:56

Thanks for this great stuff, it is really helpful in all angle. If you are searching for writing related help then visit

Hello, I think your website might be having browser compatibility issues. When I look at your blog in Ie, it looks fine but when opening in Internet Explorer, it has some overlapping. I just wanted to give you a quick heads up! Other then that, excellent blog!

Enter your comment. Wiki syntax is allowed:
chapter_1_-_internet_networks_and_tcp-ip/start.1355776525.txt.gz · Last modified: 2012/12/17 15:35 by cellbiol