As the fast development in science and technology, we find that the laptop becomes more important. We know there are something different between the general PC and the laptop, such as their cubic contents. Here the laptop keyboards, I mean some of them, may become multi-functional. However, customers could see the sign on the keyboards, this signs show their usages.
Now, we had better take a look at some. Fn, do you see? The color is purple on it, and this keyboard could be used with other ones to control the volume of loudhailer. So, what else can you see about it? Then, more importantly, the brightness of screen also be determined by it. Besides, running state of a laptop, the change of items’ displaying, direction of the cursor and so on. Moreover, we need also to know something about the whole laptop machine. For example, thought the surface we see is even made of metal or other very hard plastic material, the LCD is only with a thickness of 1 to 1.5 centimeters and it is easily become broken..
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