Recently there are 1250 million Windows PC in the world, in the next 12 months, there will be 400 million x86 PC come out. Mac related: mac dvd rippers.

Since the release of Windows 7 (October 23rd, 2009):
- 500 million PC have been sold (preinstalled genuine Windows systems);
- Android device sales are 247 million units;
- IOS device sales are 152 million units;
- Mac machines are 30 million units.

In other words, in the past two years, Windows PC sales are 16 times more than the Mac.

Windows 8 developer preview version has been downloaded 3 million times. Something about mac: rip dvd mac. in fact, within 24 hours after Microsoft released this version on the BUILD conference, the downloaded times have breaked 50 million.