Seems like nobody remembers this anymore, but IE4 was actually cross-platform—you could install it on Mac OS, Solaris, and HP-UX—and by the time IE5 was released, IE4 had reached a 60% market share.

看起来没人记着这些啦，但是IE4实际上是跨平台浏览器，你可以在Mac系统，Solaris系统, 以及 HP-UX系统中安装运行，到IE5发布的时候，它的市场占有率已达60%。

youdao

Apple has Mac OS X, and now HP has webOS.

苹果拥有其Mac OS X，现在惠普要有其webOS了。

youdao

While Apple has specific (if not strict) manufacturing and testing procedures that prevent the Mac OS from appearing on machines from Dell (NASDAQ: DELL), HP (NYSE: HPQ), or any other third party, Microsoft (NASDAQ: MSFT) lets anyone and everyone have access to the Windows operating system.

FORBES: Why I'm Leaving Windows for Mac