Science is one of the greatest blessings in modern life. Scientific advancement has led to many important inventions. One of them is the computer. About a decade back, a computer was seen as a wonder machine. A few years later, this wonderful machine came closer to us as the Personal Computer (PC) entered the household scene.
The computer today plays a significant role in our everybody's life. Computers are used practically everywhere. The use of computer in our country in the past two decades has taken a big jump. Today computers do much more than simply compute, super market scanners calculate our grocery bill while keeping store inventory; computerised telephone switching centres play traffic cop to millions of calls and keep lines of communications untangled, and Automatic Teller Machines (ATM) let us conduct banking transactions from virtually anywhere in the world.
The extensive use of computers in all fields of business has improved efficiency of the industry and the economy of the country.
Computers have the capacity to do extremely complicated work in all branches of learning. Computers can be effectively used in solving the most difficult and complex mathematical problems. The other use of computers can be in compilation of information. Thus there will be a saving of time in research works. Computers can provide information to prevent traffic accidents.
They can do such works which make the worker dull to repeat a process hundred times or more. Automation of work through computer will save the time and energy of human life. Thus human beings will get more leisure than they have today.
Computer is the result of human mind exercises. It is a machine. It can help in any physical action. It can be used in progressing a physical work. It cannot think independently. We have to feed it before taking any mental work. We can find the answers based and limited to feeding material. First, we have to feed for a particular field to find some answers related to that field, we cannot find an answer from a vacuum because there is no independent feeling and thinking to answer without any base.
Computers will never be able to replace man as they need detailed instructions from man and can never lead independent lives. In the Armed Forces computers are being widely used for collecting complex data for the aircrafts, missile and guns. The radar system is controlled with complex computers to give early warnings of coming enemy unit. Computers are also being widely used in mass communication and medical science.
Today the police have started storing data on crimes and criminals on computers. Computers now have become a need of the day, in modern life. They are being used in every field of work. Due to importance of computer, its knowledge has been thought an essential qualification for a job.
No doubt computers are capable of doing everything, but it is falling short of thinking. This is still only reserved form of man. So here computers are only machines; it cannot compete with man though they have overcome him in many ways.