随着Internet的发展,个人对于信息和获取信息的要求也会越来越高。归根结底,人们需要的是能够随时随地连入Internet,得到自己想要的东西。这样一来,Internet、移动通信业和PC机这三大信息产业的交汇点,就集中到了所谓的个人移动信息服务上。个人移动信息服务要求的首先是便于携带的信息器件,操作简便。显然,发展迅速的手持设备十分符合它的条件。随后就是随时随地上网,这无疑需要通过无线 With the development of the Internet, individuals will have more and more requirements for information and access to information. After all, what people need is their ability to connect to the Internet anytime, anywhere and get what they want. As a result, Internet, mobile communications and PC, the intersection of the three major information industries, focused on the so-called personal mobile information service. Personal mobile information service requirements are first of all portable information devices, easy to operate. Obviously, the rapid development of handheld devices is very much in line with its conditions. Then there is the Internet anytime, anywhere, which undoubtedly needs to go wireless