Smart card development The strong strong within the "chip"

From the initial braille card , barcode card, magnetic stripe card, developed to the memory card, logic encryption card, and evolved to today's smart card (CPU card), while the external form still unchanged (still play with the form of international standard card), but the technology of inside card has made great progress, when we used a smart card convenienty,we may rarely think of complex technologies behind this progress. During the development of smart card technology application and market in China ,which is a learner and follower , although at present domestic all kinds of card ‘s circulation has reached billions of copies, but China has not become