The Internet
It is a system with bilions of users worldwide. It permits and sharing of all types of information between any two or more computers connected through a large and complex network. It was started in 1960's and opened for public use in 1990's. With the passage of time it has withness tremendous growth and it is still expanding its reach. It applications include.
- E mail- It permits exchange of text/ graphic material using email software. We can write a letter and send it to the recipient through ISP's (Internet Service Providers) who work like the dispatching and receiving post offices.
- File transfer - A FTP (File Transfer Programes) allow transfer of files/ software from one computer to another connected to the Internet.
- World Wide Web (WWW)- Computer that store specific information for sharing with others provide websites eithers directly or through web service providers. Government departments, companies, NGO's (Non- Government Organizations) and individuals can post information about their activities for restricted or free use on their websites. This information becomes accessible to the user. Service search engines like Google, Yahoo! etc, help us in finding information by listening the realated website. Hypertext is a powerful features of the web that automatically link relevant information from one page on the web to another using HTML (hypertext markup language).
- E- conmerce- Use of the Internet to promote business using electronic means such as using credit card is called E- commerce. Customer view images and receive all the information about various products or services of companies through their websites. They can do on- Line shopping from home/ office. Good are dispatched or services are provided by company through mail/ courier.
- Chat-Real time conversion among people with common interests through types messages is called Chat. Everyone belonging to the chat group gets the message instaneously and can respond rapidly.
Facsimile (FAX) - It scans the contents of a document (as an image, not text) to create electronic signal. These signals are then send to the destination, the signal are reconverted into a replica of the original document. Note FAX provides image of a static document unlike the image provided television of objects that might be dynamic.
