Apple finally relea

Apple’s new operating
system boats more than 300 new features.

SAN JOSE, Calif. — Apple Inc.’s delayed update to the Mac OS X operating system hit the store shelves as consumers are increasingly snapping up Macintosh computers to complement their iPods and iPhones.

Dubbed Leopard, the upgrade went on sale at 6 p.m. Friday at stores around the world. It offers improvements to an operating system that already was widely praised for its ease-of-use and slick interface.

Leopard boasts more than 300 new features, including one called “Boot Camp” that lets users install Windows on Macs, though both operating systems can’t run at the same time. “Time Machine,” an automated data backup system, and “Spaces,” a way to simultaneously view open applications, are among the other highlighted features.

Macs have reached record sale levels, and the launch of Leopard is expected to bolster a continuing rise.

Computers with Microsoft Corp.’s Windows platform still dominate the PC market, but Apple has made significant gains over the past year, outstripping the industry’s worldwide 15 percent growth rate. Apple, which for years hovered at a 2 percent to 3 percent share of the U.S. market, now claims an 8 percent slice, according to market researcher Gartner Inc.

As Apple’s iPod players became a cultural phenomenon, they introduced millions of Windows users to Apple’s software and design. And the iPhone, Apple’s new hybrid cell phone and iPod, is spreading that halo effect.

Also, Apple’s 197 shiny retail outlets have become magnets, while Best Buy Co. Inc. started carrying Macs at some of its stores this fall. Apple says more than half of the customers buying computers at Apple stores are new to the Mac platform.

Existing Mac users can buy the Leopard operating system update separately, and it is being built into all new Macs. It costs $129 for a single user or $199 for a license for up to five machines.

Leopard is the sixth major upgrade Apple has made to Mac OS X since the computer operating system debuted in 2001. The previous major upgrade, Tiger, was released in April 2005.

By comparison, it took Microsoft five years to complete its major Windows upgrade, Vista, which went on sale in January and has been since dogged by complaints of incompatibility problems. Vista comes in different consumer editions, depending how many features are included, and ranges in price from $100 to $400.

Leopard was originally due in June, but Apple said in April it needed to divert resources to accomplish the summer launch of the much-anticipated iPhone and would delay Leopard to do that.