The Computer is the modern God that we have to worship. One may or may not believe in God Almighty, but one cannot disbelieve in the computer and in its utility and efficacy. The Personal Computer (PC) is now there in many homes even in our own country.
The computer has now become such a complicated thing that even perhaps Bill Gates and Premji, the great computer magnates, cannot fully explain the magnitude and extent of the present and future possibilities of the computer. The computer can be said to be having two broad divisions the Hardware and the Software. The hardware comprises the physical components of the computer and the Software the set programme on which the computer runs.
It is said that at present India leads the world in Software and China in Hardware. The data which is put into the computer is called the input. In the computer, the input gets changed into information. This information is treated in the computer through-processing and the net result is output. Now, the computer is being used in all kinds of technology and fields. We have electric, telephone and water bills prepared through the computer.
The computer is being extensively used in banks, hotels, shops, educational institutions, hospitals, commercial and military establishments, various industries, etc. We have computerized videogames, military exercises, class notes and so many other things. Information technology is all based on the use of the computer. Thus, it is a very useful device.