n our modern time, the computer appears in every part of our daily life. [2] It plays an essential role at work, in education as well as in entertainment. [3] First of all, at work, the computer helps us, in just a few hours or even seconds, type documents and do calculations, which may take a normal brain a life time to finish. Besides, with computers people can do businesses like stock transactions or design building, operate high-tech plants and run machines effectively. [4] Then, in education, with a computer connected to the Internet we can search almost any kind information we need for our study or learn languages more effectively. [5] [Also, teachers or lecturers can make their lessons or lectures more lively and interesting with programs such as Powerpoint or other types of slide-show]. [6] Lastly, for entertainment, after working hard we can get relaxed by playing some computer games or listening to our favorite type of music with the computer. When we want to see a movie, staying at home, we can search for it on the Internet just in term of minutes, without having to go to the theater or somewhere to buy videos tapes or CDs. [7] It goes without saying that the computer plays a key role in every part of our daily life, from businesses to education or entertainment. [8] With it, everything in life would slow down and life would no doubt be much more dull.