computer is one of the greatest inventions in human history.they are the new source of technology ,which helps to fill the gap of innocence among people.the ultimate purpose of inventing computers is to make calculations easier.their presence is vital in todays society.those who have computer knowledge have a competitive edge.and those who dont have it should seek it out.the computer is an amazing machine that can help you to perform so many different tasks in so many areas of your life.whther you want to track an investment publish a newsletter design a building or resolve complex scientific problems accurately in a short time.you can use a computer to do itthese powerful tools built of silicon metal and plastic are so pervasive that virtually no business or organization can function effectively without them even in our homes computers are becoming increasily indispensible tools.
we are rapidly becoming a computer society until recently computers were found only in environmentally controlled rooms behind locked doors only computer professionals dared enter these secured premises in contrast today computers are found in millions of homes and just about every office. in fast there is a computer for one in millions of homes and just about every office.in fact there is a computer for one in every eight people in the world.eventually all of us will have at least one computer and will use it eveyday for work and leisure.
COMPUTERS DEFINITION
in laymans language the computer is a fast calculating device that can perform arithmetic operations altough the computer was originally invented mainly for doing high speed and accurate calculations it is not just a calculating device the computer can perform any kind of manipulations involving arithmetic and logical operations on data. it gets the data through an input device processes it according to the instructions given and gives the information as output. we can defice a computer as follows,
a computer is a electronic device capable of performing arithmetic and logical operations it accepts raw data as input in the form of digital data and process it according to the sequence of instructions given by the programmer user and provides the desired information as output computers also inculde the means for storing data
