As the new technologies are dominating our life,it is impossible to do anything without computers I think touch screen is the most modern type of technologie used in lieu of mouse.It's much better and far more comfortable than mouse. The plus of utilizing touch screen is that you can touch the PC's screen without any difficulty,you only have to touch the boxes in which programs are saved. If we juxtapose touch screen with mouse we can see that mouse is very slow and, sometimes does not function, as a result they may breed a lot of problems than touch screen may do.One example is that most people suffer from such technic faults.The vice of mouses is that they often break down. It is true that touch screen break s down and causes a lot of problems, but the virtue of it can be that you can use it any where you go as it is merged wth computers such as laptop,hand-held and wearable computers. Generally speaking, they are both necessary and important for computer users according to the aim of utilizing them as workmen use them in offices and as students and people use in every day life. So as the 21th century is the age of computer technology,we will wait for some other new technologic inventions in prospect. Good Luck.
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