Apple (NASDAQ:AAPL) has been making rapid strides in the enterprise segment over the last year or so. A few weeks back, Apple’s iOS overtook Research in Motion’s (NASDAQ:RIMM) BlackBerry in terms of smartphone popularity among corporates, with the iPhone’s consumer popularity now being extended to corporates. 
According to another recent report, Apple’s Mac business sales grew by 51% in 2011, easily gaining substantial market share in the corporate PC market.  Mac accounts for around 12% of our $550 price estimate for Apple stock. Our price estimate is about 2% above the current market price.
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Mac Growth Strong Despite a Dull PC Market
The U.S. PC market declined for the first time in a decade last year hurt by a soft economy, supply shortages and the popularity of smartphones and tablets. This meant that all major PC players such as Hewlett-Packard (NYSE:HPQ), Dell (NASDAQ:DELL) and Acer saw a decline in their U.S. sales while Apple was the standout performer. Apple saw a 21% growth in Mac sales in the U.S. compared to the year ago quarter, pushing past Toshiba and Acer to take the #3 spot behind HP and Dell.
New Mac Features Will Help Apple Sustain Momentum
Apple unveiled the new Mac operating system, OS X Mountain Lion, which boasts of over 100 new features. Apple will come out with updates to its messaging service, notifications app, gaming center, sharing features and integration with the company’s online service, iCloud.  It is through these innovative efforts that Apple has managed to consistently beat the overall PC market growth for 23 straight quarters.Notes:
- THE IMPACT OF MOBILE DEVICES ON INFORMATION SECURITY: A SURVEY OF IT PROFESSIONALS, Check Point, January 2012 [↩]
- Mac business sales surge 51% as Apple continues to invade the enterprise, AppleInsider quoting analyst Charlie Wolf with Needham & Company as the source, February 18th, 2012 [↩]
- Apple Releases OS X Mountain Lion Developer Preview with Over 100 New Features, Press Release, February 16th, 2012 [↩]