Microsoft released a new generation of desktop operating systems Windows8 in Build2011 Developers Conference on September 14, 2011.And also started the download of the developer version. Almost simultaneously, under the Microsoft company, WindowsPhone7.5, after six months of publicity, was also introduced officially. However, in early October, Apple released a new iPhone4s phone. In the tablet computer field, Amazon released a cheap tablet computer on September 29, while Microsoft's Windows8 system will support largely the tablet computer device. All this shows that the major IT companies are taking a variety of ways, to desperate fight for access to the Internet terminal in this huge market. As is shown by statistics from the largest Chinese Internet service providers CNZZ that the Windows series of operating systems of the domestic Internet user population accounted for 97.63% in the gross domestic end-use of all Internet population in the third quarter of 2011, even the percentage of the overall page views is as high as 97.80%. Among these dates, the utilization and share of Windows XP system is the highest one. After 8 years of using, it was still used by more than 80% of Chinese Internet users. However, the performance of Windows Vista is not very good. Microsoft learned from their mistakes and released the popular Windows7 in 2009, the current share and occupancy rate reached 14.15% and 13.63% now. The published Windows8 can be successfully compatible with Windows Vista and Windows7. In the mobile terminal, the Nokia Symbian smart phone still accounted for the highest share at home and abroad. The share of Symbian phones is still as high as 45.73% in the domestic smart phone market in September 2011, but this old system continues to decline in the area of the smart phone market share. Apple's iPhone accounted for the share of 19.95% in the domestic smart phone market. But it needs to be emphasized is that iPhone is selling at a high price to reach the share, which indicated that iPhone has a great advantage in high-end smart phones. In order to compete with the iPhone, Google has launched Android smart phone operating system. Currently, it has occupied more than 1 / 4 share the domestic smart phone market. In tablet computer market, the series of iPad tablet computer plays a leading role, its market share accounted for 96.55% in September. Though the ipad also has some shortcomings, for example, the most obvious shortcoming is that many common video formats can be not supported by it, such as convert rmvb to ipad this converting function can not be finished. Besides, some disc-based formats also can not be played on the ipad, even then, there are many people want to buy an ipad, for they think this is small question and can solve it easily by using a dvd to ipad ripper. However, Android camp is also unwilling to lag behind naturally, quickly launched similar products to compete with the iPad. However, so far there has no in full range of product can compete with the iPad. However, Android tablet computer has the same advantages as the smart phones. Specifically, the high low-end product line is rich and enough to attract attention of users of different levels of consumption. For tablet computer devices, the mainstream consumers are not prepared to pay for it that the price is more than the price of mainstream notebooks. Only the product price falls to as the price as the traditional mobile entertainment products, such as PSP, iPod Touch, NDS, etc, the tablet computer devices can really open the post-PC era. In fact, in late September, Lenovo and Amazon have launched a thousand-level tablet computer, the price of the tablet computer will be expected to have a greater degree of decline.