What is computer? The word computer is derived from 'compute', which means to calculate. A computer is an electronic device  that accepts data from the user, processes the data and  operations on it and gives the user an output. The full form of computer is C ommon O perating  M achine P urposely  U sed For T echnological and E ducation R esearch.  Computer can handle multiple tasks like documentation, designing, entertaining, education, weather forcasting and many more. In today's time computers are being used everywhere, whether it is  army or banks. computer system Characteristics of a computer A computer is capable to perform highly complex tasks, which a man is not able to perform efficienlty. The various strenghts of computer are: SPEED:  A computer works at an amazing speed without making any mistakes. The computer can process data very fast at the rate of millions of instructions per second.   ACCURACY:  Computers provide a...