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The
Internet: An ever-changing world CyberSpace has certainly changed a lot over the past decade. The internet has gone from a text-only medium to one that's filled with pictures and sound and video. Millions of people are now getting online to see what the hype is all about, and rarely do any get off once they're on. Where will we be five, ten years down the road? Well, it's been estimated that better then $1 trillion dollars of commerce will cross over the 'net in the year 2001. |
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are some of the alternate ways to connect to the Internet:
ISDN: There are faster ways to transmit data by using an ISDN or leased line. ISDN requires a so-called ISDN adapter instead of a modem, and a phone line with a special connection that allows it to send and receive digital signals. You have to arrange with your phone company to have this equipment installed. An ISDN line has a data transfer rate of between 57,600 bits per second and 128,000 bits per second, which is at least double the rate of a 28.8 Kbps modem. ISDN is available only in some cities and not all telephone exchanges offer residential ISDN service. Leased lines: Leased lines come in two popular configurations: T1 and T3. A T1 line offers a data transfer rate of 1.54 million bits per second. Unlike ISDN, a T-1 line is a dedicated connection, meaning that it is permanently connected to the Internet. This is useful for web servers or other computers than need to be connected to the Internet all the time. It is possible to lease only a portion of a T-1 line using one of two systems: fractional T-1 or Frame Relay. You can lease them in blocks ranging from 64 Kbps to 1.5 Mbps. The differences are not worth going into in detail, but fractional T-1 will be more expensive at the slower available speeds and Frame Relay will be slightly more expensive as you approach the full T-1 speed of 1.5 Mbps. A T-3 line is significantly faster, at 45 million bits per second. The backbone of the Internet consists of T-3 lines. Leased lines are very expensive and are generally only used by companies whose business is built around the Internet or need to transfer massive amounts of data. Cable Modems: A relatively new development is a device that provides high-speed Internet access via a cable TV network. With speeds of up to 36 Mbps, cable modems can download data in seconds that might take much longer with a dial-up connection. Because it works with your TV cable, it doesn't tie up a telephone line. Best of all, it's always on, so there is no need to connect--no more busy signals! This service is now available in some cities in the Country. Additional resources... ©2000 Kelnet communications Pvt. Ltd. All rights reserved. www.kelnetonline.net |
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