What is internet and how does it help in transfer files ?

What is internet and how does it help in transfer files?

 

Hello Friends, welcome to the Superbytes blog. Well here I am gonna rip out the technology behind the internet. Before I start, I would like you to have some time to imagine the old post office mail services which is used to deliver a packet from one source to another destination. Here sender or receiver never knows how many personal of post office touches your post to check the destination address to ensure that it successful delivered on right place.

 

 

The similar kind of process used to delivered the your data or you can say digital information in the form of bits from server to client side or vice versa.

Few devices connected together making a network like an office and a college network and if connected all those network by multiple ISP which becomes INTERNET.

 

Here you need to understand what is bit ?

 

Bit is the smallest unit that is defines the value present in a signal in 0-1 form. It could be an electrical signal using Ethernet cables and it could be the light signal using optical fibre or it could be a radio wave normally using in your WIFI.

 

So over all digital data is transmitted from one place to another in 0-1 form it is called bit. This combination of 0-1 used to make every letter, symbol, value present in you msg or can say written on your letter including sender address and receiver address.

 

Now this address information is written on every packet in 0-1 form, in computer language we call it IP address. Every mobile, Bluetooth, smart tv in this world working on this  IP address.

 

IP address is used to identify the address of source where it comes and the destination address where it has to go. When it outs from its network and reach to the gateway device contain the gateway IP of the network in which your device is using. This gateway device could be your WIFI router, office router, telecom BTS router. This device open the packet and read the destination address written in the packet. This destination address is the IP address of the receiver.

 

Router check the receiver IP address and take lookup in his routing table maintained by the router and after successful lookup it forwarded it to the next hop router. Similarly like when a post received in post office post man check its destination pin code to filter the post according to the area.

 

From source to destination there  might be hundreds of routers having their own database called routing tables. And knows where to forward this packet. So finally your one packet reach your destination.

 

 

 

I know many people will have doubt that how they can  transmitted multiple GB data with in couple of minutes. Yes it is true nowadays we have high-end configuration routers running at ISP core to make them capable to switch multiple of GB data within few minutes..

 

Thanks to the technology which is making its more faster ever before.

 

Many Thanks !!

SS