Nowadays, a lot of people in the world use computers. We can see computer everywhere. People use computers to do their jobs or to relax. Some people say computers make people’s life easier and more convenient but the others say computers make people’s life more complex and stressful. There are several the advantages and disadvantages of the computer people need to know. The speed, accuracy, reliability, and integrity are the main characteristics of a computer. Day by day, each new generation of computers has been smaller, cheaper, lighter, speedier and more powerful than the earlier ones. The main advantages of computers are helps people do their works faster and more accurate. Computers also help people organize their data and information. In addition, people can make the communication with other people over sea through Internet. As we see above, there are many advantages of computer in human life, but the computer also has its negative side. The first and the most negative side is sometimes people get trouble in communication with other people. For example, people talk with other people via computer then they become lazy to face-to-face talking. Also, computers have negative effects on our eye if we spend too much time in front of monitor. In addition, sitting in front of computer in a long time without exercise is harmful to human health. For example, sitting in front of computer in a long time can cause weight gain. As you can see, computers have their advantages and disadvantages. Although the computer is very helpful and useful for us, it also has negatives effects on our life. That’s why we need to know how to use them in positive ways.