Retail sites in foreign countries, the category of the tablet computer showed that are "iPad and the tablet computer", we can see that the dominance of the ipad are strong in tablet computer industry. Recently Microsoft released the preview version of win 8, the new metro for the touch interface is beyond praise. So, will Windows 8 tablet computer be the Terminator for iPad? A consulting firm BCG (Boston Consulting Group) from Boston carried out a survey on both the degree of tablet preferences in the United States. The results of the survey made Microsoft pleasantly surprised. The survey showed windows tablet computer was well ahead of the IOS and Android tablet computer. The question is "what operating system do you want to run on your tablet computer?" on this survey. In fact, this is a rather strange problem, because Windows 8 tablet computer will be launched officially at least until next year, but U.S. consumers have more faith in the brand of Microsoft clearly, which has surpass Apple, Google and Blackberry. In China, the distance is closer, Windows is 44%, IOS is 34%, but there are relatively large gap between the United States, 42% to 27%. BCG senior partner John Ross said that the survey results didn't represent the real purchasing needs. But when win8 tablet computer will be launched in 2012, it is certainly a strong market competitor. "Look at this chart, and then think about the sales of the ipad," Ross said, " the emergence of win8 is not to snatch Apple's cake, but make this tablet computer market bigger" Another result in the BCG survey indicated that the tablet computer market will be broke in a few years, the tablet computer market expected to of USA by2013. Ross said that in the expanded market, win8 tablet computer will be the first choice instead of the ipad. Of which there are two main reasons, first is that win8 tablet computer can like personal computer can support any files and formats, such as audio and video, so it doesn't need a mac dvd to ipad 2 converter to convert a suitable format. Second is that the system of win8 tablet computer is very open and can connect with any devices. However, the system of the ipad is closed, if you want to transfer your files and music to another ipad, you must use an ipad music transfer to help you. Careful comparison of the two tablet computers, you will like the win8. It should be noted is that the survey was to began before Amazon released the tablet computer kindle fire. Ross argued that the price of kindle is low and the content is strong which has a strong competitive edge. Let's come back to the TriWizard tournament, win8, IOS and Android. Ross thought that Microsoft has advantages in integration strategy, which the ipad is lacking of. From the released of Samsung win8 tablet computer in Microsoft Developers Conference, this product is quite attractive. But it will win four into the market after the sale in 2012, let us wait and see.