The computer, is a small common machine. It sounds simple, everyone has it, but we can't live without it.
The first computer was built in the early 20th century. It was big like a whole room and could make only few orders.
At first, The computer became smaller and smarter and seems to be the big hit of the late century.
The computer was available only for very rich people of big companies but as time went on the personal computer developed.
Today compuers make our lives easy: they are easy to control, very fast and smart and available for everyone. There are more and more computers in the world every year, The ability to do orders getting better and the size smaller, while the years pass.
i got my information from google> pc>vikipedia
Migration
Migration is an old tradition to escape the winter. There are many kinds of migrating animals but the most moveable are the birds. There are two migrations every year, from a cold place to a warm, better space to stay.
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Most of the times the birds can't make the whole flight at once, so they stop at optimal contries to eat and rest. In the bird's body there is a certain percent of fat that keep the energy for the bird energy during the flight. In each bird the fat is different and it depends on the way that the bird is supposed to make every year. that's why each bird decided the right time to leave. Some birds migrate every year at the same time and some leave only when they feel or when the food is not enough. Every kind of animal has its way to survive, and birds have a special way to do that.
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