Computer plays an important role in

Computer plays an important role in this information era. However, while bringing certain advantages, this high-tech device has its own limitations.
First of all, computer has become a useful tool and an intelligent device in every aspect of life. For example, thanks to Computer and Internet, new technology in medicine is created and applied worldwide i.e. Minimally invasive surgery, microsurgery, and laser surgery. What is more , industrialization could not make its miracle jump without the support of computer and Internet. New constructive materials, new robots, and new fuels are all made with the help of information technology. That is to say computer has made our life become modern, more convenient and civilized. Moreover, computer and Internet is a great means of communication. Distance is no longer a matter of concern when we can send mails within a few seconds or make cheap internet phone call. We can also update ourselves with the latest occurrences in the world with just some simple mouse clicks. In addition, Internet is becoming so popular that having Internet access is no longer a luxury.
Granted that Internet is an indispensable part of life in this high technology era, it has its own limitations. The troubles, however, do not stem from computer or the Internet themselves but the users. The new technology is entirely positive but the users take its advantage for negative purposes. Some people use computers to do nothing but play games, chitchat, spam, create dirty information on the Net. They directly or indirectly detract Internet from its benefits to the community. Many people are scared of using Internet because of their fear of being abused, or spamed. or becoming Internet addicts. In addition, sitting in front of the screen for long hours can lead to obesity, backache, and short-sightedness. Besides, people paying too much attention to online activities may become passive, sluggish in real life because of their lacks of communication, and manual labor.
In short, everything has its two sides, so does computer and Internet. Therefore, it is necessary that we use it for right purposes.