How Internet Works--Cyber_Space Part[2]

                            HOW INTERNET WORKS  

                                               

 

 The internet is a network of networks--millions of them actually. If the university has connected to the internet or your home has internet access, it connects to the ISP(Internet Service Provider) but not all.ISPs are very big telecommunications companies such as Verizon, Comcast. These providers would communicate with each other to exchange traffics and ensuring the data can get be delivered and willing to communicate with you. 

The Internet has no center and no one owns it. The internet to be redundant and fault-tolerant, which means that if one network, connecting wires, if the server stop working but everything else should keep on running. Rising from military research work from educational institutions as far back as the 1990s. Actually, the internet came in the 1990s. When a graphical interface browser is invented and much as the operating infrastructure transitioned to be supported by private firms rather than government grants. 

Let's move on to How the internet works and How computers communicate with another using internet.

First of all, you need to know about what are they looking for? Where is it? And how we get there? The computers and software that makeup internet infrastructure can help provide answers. when you type an address in a web browser ( also called Uniform Resource Locator)that tells your browser what you're looking for. The below figure shows how the URL represents. 

                                      http://www.chesathishblogs.com/tech/index.html

/* http-->                         Application transfer protocol

www-->                          Host name 

chesathishblogs-->      Domain name

com-->                              Top-level-domain

tech-->                                 path

index.html-->                        file-name   *\

The HTTP//:(HyperText Transfer Protocol) you can see this simultaneously in a web browser when you searching, It is a communication protocol that has a set of rules like English. The HTTP defines how the web browser and web server communicate is to be designed independently from hardware and operating systems, That means whatever device you have like PCs, mobile, mainframe it will be transfer information understandably using the protocol. then it will be heard and understood. 

The internet supports lots of applications, and many applications using their own protocols to communicate with each other. The server holds your Email uses SMTP(Simple Mail Transfer Protocol) to exchange mail to other mail servers throughout the world.FTP(File Transfer Protocol) means how most web developers upload their sites on websites. Even webs use different protocols, When surfing the internet to buy things and enter credit card details on it so it will be adding  " URL: 's'-(secure) https:/  " it will be encrypted your information while exchange. The beauty of the internet is Anyone can create websites that will be a ride on the top URL.

  [ Host_and_Domain_Names ]: The Next part of the URL is Host and domain names. for example, Think of the domain as your network you're trying to connect to and also the host is your computer to looking form the network.There are so many domains has common hosts.  "Yahoo" shows you the common website for the hosts (WWW),there are (http://www.yahoo.com), and also run in "sports"(sports.yahoo.com), "finance" (finance.yahoo.com). Most website configured the default hosts. If you want to change let's do it. TIP_1-->When you search in a website most web browser "HTTP:" it will automatically add in your url,TIP_2--> and the url is not case sensitive you can type upper_case and Lower_case. 

 

[Path_Name and File_Name]: Let's see about the "path & file name" you can see those are in your top domain in the URL.  Path_name: used to find the folder location in  the server. File_name:  is used to find which file you're looking for. you don't need to describe your path and file.  if you are not using that. The default page will load on the server ex: "google.com" it shows google logo,goole typewriter, google button you might not see but it's there its is a .html  file type but every page is not the .html type. unlike Acrobat documents(.pdf), PowerPoint(ppt,pptx), wordpoint(.doc,.dox) JPEG images and some address websites file contain content for every visitors like (amazon.com), a file will contains of programs the browser will generates user-friendly content for you.