无声的脚步: 计算机杂谈

无声的脚步: 计算机杂谈http://zhangshunke.spaces.live.com/?_c11_BlogPart_BlogPart=blogview&_c=BlogPart&partqs=cat%25E8%25AE%25A1%25E7%25AE%2597%25E6%259C%25BA%25E6%259D%2582%25E8%25B0%2588en-USSun, 07 Sep 2008 08:14:57 GMTSun, 07 Sep 2008 08:14:57 GMTMicrosoft Spaces v1.1http://www.rssboard.org/rss-specification60http://zhangshunke.spaces.live.com/blog/feed.rssblogcategory-4417928243488989342zhangshunkeWill your Intel-based Mac run Windows?http://zhangshunke.spaces.live.com/Blog/cns!C2B05DAB73AC5F62!261.entry<div> </div> <div><font size=2> 既然苹果已经宣布将推出新的基于英特尔处理器的电脑，那么现在的苹果操作系统和Windows 操作系统都能在基于英特尔的硬件上运行，如此，在同一台电脑上难道不可以同时运行这两种操作系统吗？这是一个很有趣的问题。今天在</font><a href="http://news.com.com/"><font size=2>http://news.com.com/</font></a><font size=2>上刚好看到这样的文章，文章对这个问题做出了一定的说明，特<font color="#ff0000" size=6>转载</font>。</font></div> <div><font size=2> </font> <p><span><font size=2>FAQ: Will your Intel-based Mac run Windows?</font></span><span> <div><font size=2>By </font><a href="mailto:ina.fried@cnet.com?subject=FEEDBACK:FAQ: Will your Intel-based Mac run Windows?"><font color="#002c99" size=2><u>Ina Fried</u></font></a><font size=2> <br>Staff Writer, CNET News.com<br></font></div> <div><font size=2>Published: January 20, 2006, 12:05 PM PST</font></div> <div><font size=2></font></div> <div><strong><font size=2>Apple Computer's announcement of new Macs based on processors from Intel raises an interesting question: Since both the Mac and Windows operating systems now run on Intel-based hardware, shouldn't it be easy to run both on the same computer?</font></strong></div> <div><strong><font size=2></font></strong></div> <div> <p><font size=2>That simple question deserves a simple answer. But there isn't one--at least not right now. Reaching the nirvana of running the two most popular desktop operating systems on one machine is a lot harder than you might expect. </font> <p><font size=2>Apple has said that it wasn't planning to support Windows on the "MacTel," but the company also said it wouldn't try to stop people from doing so. Still, some of the technical choices Apple has made in designing the new Intel-based Macs have made running Windows a challenge. </font> <p><font size=2>The good news? Plenty of people have been working to break down the barriers, so it should only be a matter of time before Windows shows up on the iMac's 20-inch widescreen display. </font> <p><font size=2>Even after solving the technical challenges, there are also legal hurdles. Just because you might get Windows running on a Mac, or Tiger running on their Dell, doesn't mean it's legal. </font> <p><font size=2>Finally, even if the legal and technical obstacles are overcome, many people say just being able to boot both operating systems independently is not the answer. Most people will want the systems to interact, which means some form of emulation or virtualization. Some small developers are making promises in this area, but just how quickly this will happen--or how quickly the emulated OS will run--remains to be seen. </font> <p><font size=2>We're not engineers or lawyers, but here's our best stab at answering some common questions:</font> <p><font size=2><b>Q: So if the Mac runs on Intel chips and Windows runs on Intel processors, what's the holdup?</b><br>A: The challenge comes in the technical means by which the operating systems load. Windows loads itself using something known as the Basic Input/Output System, or BIOS. Apple's Intel Macs, however, use a newer technology known as Extensible Firmware Interface. </font> <p><font size=2>"These different firmware environments will separate MacOS and Windows environments almost as effectively as instruction set architecture did when Macintosh software ran only on PowerPC chips," chip analyst Nathan Brookwood said in an e-mail.</font> <p><font size=2>But not everyone is convinced the obstacles are so insurmountable. Envisioneering analyst Peter Glaskowsky noted that Gateway had a Windows Media Center PC back in 2003 that used EFI rather than BIOS. Gateway, Glaskowsky said, had to change the boot loader that manages how operating systems load. </font> <p><font size=2>"It's just not a big deal," Glaskowsky told CNET News.com. "At some point, I expect it would be in the next week or two, somebody will figure out how to change boot loader on those Macs so that it is smart enough to do the same thing." </font> <p><font size=2>In any case, word is that the next version of Windows, called Vista, will support EFI. Enthusiasts claim to have made some progress in loading test versions of Vista onto an Intel Mac, though the work is not yet complete.</font> <p><font size=2><b>Q: OK, that sounds complicated. So what about running Linux on an Intel-based Mac?</b> </font> <p><font size=2>A: Discussions about the idea quickly cropped up on a mailing list for Red Hat's </font><a title="Red Hat releases newest Fedora -- Monday, Jun 13, 2005" href="http://news.com.com/Red+Hat+releases+newest+Fedora/2100-1016_3-5744512.html?tag=nl"><font color="#002c99" size=2><u>Fedora</u></font></a><font size=2> version of Linux. The verdict: Again, it's a matter of writing the right code, but it's not simple. </font> <p><font size=2>The challenge here is not the chip, but the way that the operating systems boot. Most Linux versions use a boot loader called GRUB that doesn't support EFI at present, though Itanium versions of the operating system use a different one called Elilo that does. </font> <p><font size=2><b>Q: What about going in the other direction: How about running the Mac OS on other Intel machines, like a standard PC?</b> </font> <p><font size=2>A: Apple has said that it will take steps to prevent this from happening. "We will not allow running Mac OS X on anything other than an Apple Mac," Senior Vice President Phil Schiller said in a June interview. The company has not gone into specifics, but appears to be using a TPM (trusted protection module) chip as part of its authentication mechanism.</font> <p><strong><font size=2>Q: OK, how about programs like Virtual PC, then, that run under the Mac OS but allow Windows emulation?</font></strong> <p><font size=2>A: Microsoft, which now owns Virtual PC, has been a bit cagey on when, or even if, it will bring out Virtual PC for the Intel Mac. The company's public statement is that it sees a need for such software, but hasn't decided whether it will do it. However, the Wall Street Journal's Walt Mossberg said Microsoft is doing a version and will have it ready next year. </font> <p><font size=2>Other emulation makers have been more direct. One small company, iEmulator, has promised that it will have an Intel-native version of its software by the end of February. "We're already in early testing," said general manager John Czlonka. "The performance increase is staggering."</font> <p><font size=2><b>Q: Technical issues aside, is it legal to run Windows on a Mac?</b> </font> <p><font size=2>A: It seems so, but only by purchasing a full copy of the OS, not the upgrade versions typically bought by consumers. Microsoft says that a fully licensed copy of Windows XP Professional can be properly licensed if run on an Intel Mac.</font> <p><font size=2><b>Q: What about running the Mac OS on a non-Apple PC?</b><br>A: There isn't a legal way to do that, given that Apple doesn't sell standalone versions of its operating system. Because all Macs come with some form of the Mac OS, the retail boxes that Apple sells are only licenses to upgrade from one version to another. </font></div></span></div><img src="http://c.services.spaces.live.com/CollectionWebService/c.gif?cid=-4417928243488989342&page=RSS%3a+Will+your+Intel-based+Mac+run+Windows%3f&referrer=" width="1px" height="1px" border="0" alt=""><img style="position:absolute" alt="" width="0px" height="0px" src="http://c.live.com/c.gif?NC=31263&NA=1149&PI=73329&RF=&DI=3919&PS=85545&TP=zhangshunke.spaces.live.com&GT1=zhangshunke">http://zhangshunke.spaces.live.com/Blog/cns!C2B05DAB73AC5F62!261.entry#commenthttp://zhangshunke.spaces.live.com/Blog/cns!C2B05DAB73AC5F62!261.entryFri, 23 Jun 2006 05:57:15 GMT2blogentryblogentryBlog entryhttp://zhangshunke.spaces.live.com/blog/cns!C2B05DAB73AC5F62!261/comments/feed.rsshttp://zhangshunke.spaces.live.com/Blog/cns!C2B05DAB73AC5F62!261.entry#comment2007-05-14T06:48:00Z