What Is Internet ?
What Is Internet ?
This network called ARPA net quickly grew. This primary service on ARPA net was electronic mail. It was the first time that emails actually came into use. In very short time, students began linking their own campus networks into ARPA net, using a well defined protocol TCP/IP. This joining of networks was also called inter-networking, and soon the entire setup was called INTERENT.
In 1973, ARPA net allowed international bodies to the net, and after that there was no looking back.
The service provider provides the hook-up from the residence or business to service network. The Internet mostly connects network of computers. The Internet is also called as the Global Internet because networks from most of the countries with some sort of telephone service infrastructure is connected to it. Practically this means people can use their computers on their local networks to messages or exchange files with people using in another company or in another state, geographic region, or another country.
The Internet is based on packet-switched protocols. Information is carried in packets, which can be imagined as small parcels being passed from computer to computer. Large chunks of data are usually broken up into several smaller packets before being sent through the network. The delivery mechanism, or protocol, that is used to encode the packet ensures safe transit, and provides a way ofreconstructing the data when it reaches its destination. The protocols used on the Internet are referred to as TCP/IP, standing for Transmission Control Protocol/Internet Protocol.
As a switched network, the physical connections between computers do not matter as far as Internet traffic is concerned the protocols ensure that guaranteed information delivery is more important than speed or use of a particular route. This means that a sequence of packets might arrive out of order, with some travelling through the net by a faster, shorter route than others. TCP/IP provides the means for your software to piece together those packets into meaningful data. The ability to take different routes through the network is a fundamental part of the original design of TCP/IP, as it allows the Internet to route around damaged areas of the network.
Some uses of Internet
- Looking for jobs
- Learning a foreign language
- Making friends from any part of the world
- Participating in a discussion about your favorite TV show with similar minded people across the world,
- Send to a friend, an electronic birthday card that actually signs happy birthday to you’
- Go through the catalogue of a library situated across the globe and find a book you always wanted to read
- See the latest photographs of your movie stars.
- Download some interesting software and try it out.
- Make your own home page, which talks about yourself, your family, your pets and your hobbies.
- Chat with a friend working abroad and see him as you talk.
From home you can use Internet for following activities
- To exchange email with friends and family
- To participate in group discussions through public news groups or bulletin board
- To find educational tools around the world, access libraries, book stores etc.
- For entertainment
- To do shopping
- Leisure activities or business the Internet is invaluable:
- Get technical support for products
- Distribute software
- Provide technical support, bug fixes, product information to customers etc.
- Publish information on any topic
- Communicate or collaborate on projects
- Market or sell products
- Access business while at home
- These services can be availed round the clock from anywhere in the world.
- At any given point of time, up-to-date information can be obtained.
Not only is the Internet leading to a ‘Information superhighway’ but is dramatically altering the way corporations do business. e-money and e-commerce are offshoot of the Internet. The areas of application are limitless and the Internet is changing the way we think and live.
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