The growth of computers in the past few years has been exponential. Computer Revolution has come upon with amazing speed. We can compare this revolution to the Industrial Revolution. The Industrial Revolution changed human society on a massive scale by introducing electricity, telephones, radio, automobiles and airplanes. The Computer Revolution also is bringing dramatic shifts in the way we live. And to use computers we no longer have to be a scientist or mathematician. All of us can use computers.
Let us understand what a computer is and how it affects our lives. A computer is a special machine that an be instructed to take in, sort, compare and process information and output the results in a useful way. A computer can make calculations far quicker than a human brain but it needs to be told what to do and to be given all the facts it requires. Computers cannot think for themselves. They can only follow instructions.
A computer is one of the most powerful forces in the society today. It's being put to use everywhere whether in homes or in organizations of all sizes. Computers are used for a variety of purposes including producing letters and graphs, maintaining accounts, monitoring patients in hospitals, searching for information, fly and land airplanes, run rapid transit systems, inventory management, locate oil, natural gas etc., handling money, record keeping. diagnose diseases, weather forecasting etc. The computers have thus moved into every nook and corner of our daily life. The use of computers has expanded so rapidly that their presence can no longer be ignored. Everyone needs to feel comfortable with these machines in order to function in a modern society.
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