Living in the digital age, we are unavoidably exposed to all kinds of digital products, such as digital camera, digital computer, digital television, and so on, which grow in an increasing categories and quantities. Believe it or not, look around yourself and you can easily find one or two of these stuffs. Here is a question，what kind of influence do the digital products bring to people’s life.? Frankly speaking, these modern digital products offer us a more convenient life than before. For e...