How Internet Works?

Internet is a distributed pocket switched network which distributed world wide via optic fiber cables. Those connected the countries by going under the sea.

IS ANYONE INCHARGE OF THE INTERNET?

No one is operating the internet. It is an independently operated network.

    Internet send the information in binary system means it send either 1 or 0. Since for a song it take 3 to 4 megabytes.

All the different devices on the internet have unique addresses .An address on the internet is just a number. It is known as IP (Internet Protocol) address .Traditional  IP addresses are 8 bit long (i.e.  174.129.13.152) this IP address known as IPv4 designed in 1973 and adopted in 1980’s. Provides more than 4billion unique addresses .Now days which are not enough so we used IPv6 which contains 128 bit per address .The internet is a design philosophy and an architecture expressed in asset of protocols. Protocol is a well known set of rules and standards used to communicate between machines.

HOW DATA ARE SEDND TO THE DEVICE?

Data are sent as packets.  Many kinds of digital information can be sent with IP packets. If we want to download any image which is too much for a single packet then it will divide into few packets these packets will be filled with binary codes (i.e. 0 and 1) packets do not have drivers and do not choose routes. Each packet has the address where it is came from and where it is going. Routes behave like traffic manager. Then first songs will be divided into different packets and there have TCP (Transmission control protocol) which manages the sending and receiving of all your data as packets are received by the device then TCP sensing that all packets are received and it will be signed.  Which means download is complete . This is the basic of internet working.

SEARCH OPERATION:

When any search operation occur there have DNS or domain name system the computer search for the particular IP address and send to the computer then we reached to that website. A single DNS server unable to take that much responsibility . So servers are connected in a distributed hierarchy. DNS was created to be an open public communication protocol. Because of it openers DNS is acceptable to cyber attacks. Example of attack is DNS Spoofing. When  a hacker changing the IP address. The internet grows everyday but DNS and IP address are designed to scale no matter how much the internet grows.