What is a computer?

A computer is an electronic device, operating under the control of instructions stored in its own memory, that can accept data, process the data according to specified rules, produce results, and store the results for future use.Monitor, keyboard and speaker are components of computer. There are many kinds of advantages of computer, but there are many kinds of disadvantages too. The examples of advantages are paperless, its can save our environment and prevent pollution. Besides that, computer also can make our communication become very easy such as we can communicate or talk to other person at any countries without stay at same place. And the other one is produce more information with faster and correctly.Then, the disadvantages of computers are easily expose us to pornography, sex, and also can harm other. People can make some slanders to other person through a computer such as, show or write the bad thing about other person. Mostly, this things will happen to actors or singers.