The Internet

At present we cannot imagine our life without the Internet. The Internet is necessary for each person. It is an integral part of our life. All people use the Internet on different purposes: for searching the information, for work, for studying, for fun and entertainment.

Every day millions of users open their favorite websites, use e-mail and other means of connection. By the way, ease of connection is one of the greatest achievements that were given to us by internet. It is not necessary to use telephone to make international calls. Using Internet we can talk with our friends, relatives, co-workers from any country in the world.

As we know, World Wide Web (WWW) is the source of information. So there are some countries that limit usage of Internet. There are strong restrictions to visit international websites. These countries can be found in Arabic world.

The rest of us can freely use Internet. For example, you can sell your personal goods. You can find new friends or even love through Internet. It is a great world that made our life much easier and more interesting.

As for me, the Internet is a dialogue, searching for various information. The Internet is very important and also it is a necessary thing.

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Optical Technology

One of the most interesting developments in telecommunication is the rapid progress of optical communication where optical fibers are replacing conventional telephone wires and cables.

It is a result of combining two technologies: the laser, first demonstrated in 1960, and the fabrication of ultra-thin silicon fibres 10 years later.

Optical fibers are made from glass and are usually about 120 micrometers in diameter. Although they are so small they are much more efficient than copper cables with the same bandwidth. It means that they carry more channels of information over longer distances. It is difficult to steal information from optical fibers and they don’t ignite, So they can be used in flammable atmosphere, for example in petrochemical plants. Optical fibers are more expensive per meter than copper cables, but optical systems can transmit pulses of light as far as 135 kilometers without any need for amplification or regeneration.

So, we may say that Optical communication promises a considerable increase in capacity, quality, performance and reliability of the global telecommunication network. In fact, any kind of information, such as voice, computer data, even video images, can be processed and transmitted over a single digital communication network.

Nowadays optical transmission systems are being installed between major cities of Kazakhstan at a rapid rate. It is found that optical technology is cost-effective and versatile. It finds new applications every day – from connecting computers or communication equipment within one building to long distance and space communication.

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