Apple unveils new 'iPad Air'

Apple has unveiled its new iPad Air, a new operating system and new computers at a launch event in San Francisco.

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Apple: Mavericks operating system 'free'

Apple's Craig Federighi says Mavericks is available to download free of charge. Credit: REUTERS/Robert Galbraith

The new operating system for Apple's Mac computers is now available free of charge, Apple has announced.

"The days of spending hundreds of dollars to get more out of your computer are over, " Craig Federighi, Apple Inc. Senior Vice President of Software Engineering told an audience at an Apple product event in San Francisco.

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