How Internet works ?

What is Internet ? How it Works ?

In this Tuto you will understand how the internet actually works !

When i said internet a lot of pepole (70%) of them will think that the internet is like a cloud or something is traveling via the air, but that is wrong the internet is something logical and easy to understand, wire the Internet is useful because two computers connected directly to this wire can communicate a server is a special computer connected directly to the Internet 

and web pages are files on that servers hard drive every server has a unique Internet Protocol address or IP address just like a postal address IP addresses help computers find each other but since 72 1412 I've done 100 it doesn't exactly roll off the tongue we also give them names like google.com facebook.com or security catalyst comm so this is how it works your computer at home is not a server because it's not connected directly to the Internet computers you and I use everyday are called clients because they're connected indirectly to the Internet through anInternet service provider here we'll pretend that this is my home laptop and I'm using DSL now let's pretend that I want to visit aol.com which is coincidentally both a server and an ISP I hop onto my laptop with DSL go through my ISP onto the internet and look at aol.com my computer connects with AOL comm and I can look at this web pages now let's say that I want to send an email and Ruth and Ruth has AOL dial-up from home and I've got a gmail account I logon to gmail.com and compose a message to Aunt Ruth's email address Ann true that lol calm once I click send gmail.com since the email to a o L calm the next day Aunt Ruth dials into AOL servers and retrieves the email whenever an email picture or webpage travels across the internet computers break the information into smaller pieces called packets when information reaches its destination the packets are reassembled in their original order to make a picture email web page or tweet okay so imagine you're at work sitting next to your boss and you're both surfing online your boss is doing market research and you're updating your Facebook profile you're both sending packets back and forth over the Internet but what's to keep your packets from accidentally ending up on your boss's screen that could be embarrassing the solution to that problem is IP addresses and routers everything connected directly or indirectly to the Internet has an IP address everything that includes your computer servers cell phones and all of the equipment in between anywhere two or more parts of the internet intersect there's a piece of equipment called a router routers direct your packets around the internet helping each packet get one step closer to its destination every time you visit a website upwards of ten to fifteen routers may help your packets find their way to and from your computer imagine each packet as a piece of candy wrapped in several layers the first layer is your computer's IP address your computer sends the packet to the first router which adds its own IP address each time the packet reaches a new router another layer is added until it reaches the server then when the server sends back information it creates packets with an identical wrapping as the packet makes its way over the internet back to your computer each router unwraps a layer to discover where to send the packet next until it reaches your computer and not your bosses and that's how the internet works