What is Internet.? |Definition of Internet |

What is Internet ..?

Definition of Internet :

The Internet is defined as the global information system that is logically linked together by a globally unique address space based on the Internet Protocol(IP) and is able to support communications using the Transmission control Protocol/Internet Protocol (TCP/IP) in order to provide, use or makes accessible,high level services layered on the communications and related infrastructure.

Description :

• Internet was the next step of ARPANET and NSFNET.
• Sometime in mid 1980s, people started thinking about the interconnection of many networks and the Internet came in to existance.
• It started growing exponentially with all the types of existing  networks getting connected to internet. This was possible due to the use of TCP/IP reference model and TCP/IP protocol stack.
• The internet is a globally existing network of networks consisting of a huge number of computers located in all the parts of the world.
• Already billions of people share it and the number is increasing every day.

• All the computers connected to the internet are part of this huge network.Networking is interconnection of computers. Generally the networking topologies used for networking are star,bus,ring,loop etc.
• When a limited number of computers are to be interconnected, the local area network (LAN) is used.But in the internet the interconnection is achieved even via satellites.
• The power that a computer gets due to the internet is amazing. It is now posible to send and receive the data with in a fewseconds of time from any part of the world.

Note : Next topic is on "Evolution of Internet"...

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