Computer is an electronic device which is made up of various parts like CPU (Central Processing Unit), monitor, screen and brain-like functional system called Bites. It performs calculations and processes information. It can handle vast amounts of facts and figures and solve complicated )ره( problems at high speed. A fast computer is able to process millions of pieces of information in seconds.

A computer can manipulate ) خوش اسلوبی سے نمٹا( information. If we think of information as data, which is meaningful, we can start knowing that a computer possesses special capabilities. It brings such information which is made up of symbols, that take the form of letters, words, digits or numbers. So, a machine that changes information into a meaningful data is computer which exactly is not like a human brain, and has brought about a ability of a computer to do so many tasks makes it useful for a wide variety of purposes. It can process many kinds of information, ranging from titles of books, customer's account numbers to chemical formulas and phrases taken from Greek and Latin. Bulk stores depend on computers to bill their customers and to keep track of stocks. Industrial plants use computers to control machines to produce food items, chemicals, steal products, fertilizers and cloth prints. Computers are not only used to explore space and beyond these are put to use to guide planes, ships, space machines. These enable scientists to analyse() data returned by space probes(7). These are used as teaching machines. Computations can be done in no time.

Although a computer can do so many jobs for you yet it cannot speak. It is without power of speech. A human being has to feed instructions to a computer, exactly telling what to do. It is called performance. We must check a computer's performance, it can interpret )2 performance (1) Computers differ greatly in size. Equipment )سازوسامان( of a big computer can fill a whole room. Mini computers are as small as can be held in one hand, and could be of six inches long. Internet is a global network of computers. The world is formed into a global village by the system's mainstream functioning. You can easily exchange information through chatting, send messages, retrieve )کھوئی ہوئی دوبارہ پانا files, visit sites of internet anywhere in the world. Internet is used through phone lines with minimal charges. It is like a highway in the world of business and transaction )کانبار(. Internet can be used in educational institutions to impart(t) information on science, medicine, avionics, space and oceanography )سمندر سے متعلق معلومات کی وضاحت It is a non-centralized management run by the people of the world.