Leopard

The launch of Apple Inc's latest operating system, Leopard, was its best ever, a research group said on Monday.

When comparing the first full month of sales of Apple Mac OS 10.5 "Leopard" (November 2007) to the first full month of sales for Mac OS 10.4 "Tiger" (May 2005), dollar volume for Leopard was up 32.8 percent and unit volume up 20.5 percent, NPD Group Inc said in a statement.

Apple, maker of the Macintosh computer, the iPod digital music player and the iPhone smartphone, started selling Leopard on Oct. 25, after a four-month delay due to the company's work on the iPhone.

Apple has announced that the newest version of its Macintosh operating system would go on sale on October 26, hitting the market after a four-month delay due to the company's work on the iPhone.

The new version of Apple's OS X software, called Leopard, will cost $129 for a single user and $199 for a family pack that can be installed on up to five computers in one household.

New features include a file back-up feature called "Time Machine," improvements to e-mail and instant messaging, the ability to preview documents or files without launching a separate program, and quick access to other computers on a home or office network.

Leopard marks the sixth version of OS X in as many years, a feat the company is quick to contrast with Microsoft Corp, which went more than five years between new versions of its Windows operating system.

Microsoft's Windows Vista became broadly available early this year and comes in several versions that cost between $100 and $260, according to the company's Web site.

"This is going to be great for Mac momentum, which has already been strong for the past few years. This is just one more thing on top of that," Apple's vice president of marketing, Phil Schiller, told Reuters in an interview.

In its fiscal third quarter that ended June 30, Apple sold nearly 1.8 million Mac computers, up 33 percent from a year earlier, a growth rate about triple that of the broader PC market.

Back in April, Apple delayed the release of Leopard to October from its original June target, citing the need to divert software development resources to the iPhone, which was launched in late June.

Apple shares rose nearly 1.6 percent to $169.58 on the Nasdaq.

The company, which also makes the popular iPod digital media player, said its online store is now accepting pre-orders for Leopard.

Apple said Tuesday it started receiving orders for its new operating system called Leopard, which will go on sale on Oct. 26 and cost $129 for a single user license.

The maker of the Macintosh computer and iPod digital player also said the Mac OS X Leopard Family Pack, which is a license for five users from a single household, will retail at $199.

Leopard is expected to boast new features including a file back-up feature called "Time Machine" and improvements to its e-mail and instant messaging software. Another feature allows users to move from their standard desktop view to an archival view showing every change made to a particular file.