s sales

HTC reported weak fourth quarter results and forecast an even tougher first quarter as competition from Apple and Samsung squeezed the Taiwanese smartphone maker.

HTC said it was expecting first quarter revenue of between 65 billion and 70 billion Taiwanese dollars, well below analyst expectations.

China isn't just the place Apple manufactures products. It's now the country delivering the most revenue for them after the U.S.

In the most recent quarter, China accounted for 16 percent of the Apple's sales, and the company says it will continue to increase its presence.

Yes, Apple had a massive quarter. But just how masive? This chart from Asymco puts Apple's incredible revenue growth in perspective.

Apple grew revenues by 82 percent last quarter, which is unprecedented growth for a company of its size with $28.6 billion in quarterly revenues.

As you can see from the chart, nearly all the growth in sales is coming from the iPhone (gray) and the iPad (blue).

In fact, 71 percent of Apple's sales and 78 percent of its profits now come from iOS devices. And the iPad alone is cannibalizing Mac sales.

Microsoft’s CEO Steve Ballmer has never been too modest about Microsoft’s sales numbers; in fact, throughout the Vista era he insisted that the news OS is doing great, selling better than any other Microsoft OS in history.