1. SPEED :- Computer is very fast calculating device. It can execute basic operations like substraction,addition,multiplication and division at a few microseconds. It can move and copy data at a speed in the order of billion instruction per second. 2. ACCURACY :- Computer always gives accurate results. The accuracy of Computer does not go down when they are used continuously for hours together. It always gives accurate results. 3. STORAGE CAPACITY :- Computer have a very large storage capacity. A large volume of information can be stored in the memory of computer and information can be retrieved correctly when desired. 4. VERSATILITY:- The working of computer with different types of data is known as versatillity. That means computer can perform different types of job efficiently. Computer can works with differents type of data and information such as visuals,text,graphics & vidio etc. So, versatility is a most important characteristic o