In the past, computers were used only in the workplace. They were commonly used for mathematical explorations and innovations. The earliest computer was Babbage's Analytic Engine. Charles Babbage designed his Differ-ence Engine in the nineteenth-century because people were making many errors in calculations.
First computers were really huge. They occupied whole rooms. And many people were needed to work with them.
Modern computers are able to do great number of things, not only to calculate. In today's society, computers are necessary. They are used in all kinds of jobs. They are used in Science, Math, Medicine, mechanics and so on.
We can't imagine our life without computers. They have a respected place in the modern world. New generations are using them for everything: to learn, to communicate, to do research, etc. And old generations have become to accept them as well.
As a student of NSTU, I use computers every day both in my studying and in my personal life. They help me to relax when my stress is maximum. I can also find a lot of interesting and useful things by using the internet. By using e-mail to communicate with my friends I save a lot of money because I don't need to make long distance calls.
Computers help me to make my life easier.
But on the other hand computers are dangerous for people. They are very bad for our eyes and nervous system. But in spite of this millions of people use computers in their ordinary life. They can spend hours and hours in front one of them.
I think my future profession will be connected with computers. At real I think that all professions in the nearest future will be connected with them.
Alexander Bell
Alexander Bell never planned to be an inventor; he wanted to be a musician or a teacher of deaf people. The subjects that he studied at school included music, art, literature, Latin and Greek. They did not include German which all scientists used in their books. Alexander's mother was a painter and a musician. His father was a well-known teacher of deaf people.
When Alexander was only sixteen, he became a teacher in boy's school in Scotland. He liked teaching there, but he still wanted to become a teacher of deaf people as his father.
At twenty five Alexander became interested in finding a way to send human voice through an electric wire. The parents of his pupils invested money for the equipment. He found an assistant, Tom Watson, who worked in an electrical shop. For two years Tom and Alexander were working together to build a machine that people could use to talk to one another over long distances. One day, when they were working on a new transmitter Alexander spilled some acid on himself. Tom Watson, who was alone in another room, heard a voice. The voice was coming through a wire on the table. It was Alexander's voice.
The first telephone line was built in Germany in 1877. Then a telephone lines were opened in the United States. First telephones were big. And the distance of talking wasn't very long.
Now there are such great inventions as mobile and video telephones. And you can speak with your friend from any part of the world.
Who knows, may be in the future telephones will transmit smells and feelings.



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