A Virtual Private Network (VPN) is the extension of a private network that encompasses links across shared or public networks like the Internet. A VPN enables you to send data between two computers across a shared or public Internet and work in a manner that emulates the properties of a point to point private link. [...]

We all get affected by the advertisements in the magazines, radio and television. They promise you and make you believe to get your ideal things for the money you spend. Their sole purpose is to induce the buyer to spend more. Well, knowing this truth does not stop the victims from getting attracted by this [...]

Virtual reality is an artificial environment created with computer hardware and software and presented to the user in such a way that it appears and feels like, a real environment. To “enter” a virtual reality, a user wears special gloves, earphones and goggles, all of which receive their inputs from the computer system. In this [...]

The airline CRS were the pioneers of computer applications and are now virtually indispensable because they enable their revenue streams to be maximized by efficient inventory control. The technology works by using computers of a special kind and leased telephone lines. The travel agent is connected on-line to the central host computer system or CRS. [...]

GDS distribute reservation and information services to sales outlets around the world. Unlike the Computer Resevation Systems (CRS) which is used mainly by an airline or hotel chain, GDS distribute more than one CRS to users who are usually travel agents. GDS were formed from several CRS, each of which had its airline backer. Once [...]

Nature is our mother. She offers us all facilities to lead a comfort and peaceful life. She feeds the human beings who are her children. The plants, trees, brushes and the grains we grow belong to the nature. Yet man is not grateful to nature. He pollutes the surroundings and brings destruction on himself. Environmental [...]