Computer made man. But computers have some features that make it convenient to use computers instead of humans in many cases. Among these, five notable features are given below: Restless 2 . Taking Risk Ability 3. Unreal movable memory 4. Passionless 5 . Obedient The relationship between the mentioned characteristics is discussed below. 1. Restless: Computer can work tirelessly . A person gets tired after working for some time. He needs rest. But computer rest is not needed. 2. Taking Risk Ability: Computer is used for risky work. For example, human feet have not fallen on the surface of Mars , man-made rabbits have fallen. 3. Unremovable memory : What is stored in a computer's permanent memory can be used at work when needed. People can forget a lot but computers don't. 4. Passionless: The computer has no emotions or feelings . So it is possible to do creative work as well as destruction work with rabbits. 5. Obedient : The computer works as instructed. That's why computers are loyal. No need to worry about computer loyalty. But people may or may not be loyal .