Verizon iPhone 4

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Verizon iPhone 4

In January, Apple whipped the curtain back from one of tech's worst-kept secrets: the iPhone 4 on Verizon. With the exception of tinkering with the antenna to make it Code Division Multiple Access-applicable (CDMA-applicable), the Verizon version of the iPhone 4 offered precious little difference from the AT&T version in both hardware and software.

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iPad 2

Apple's second big unveiling of 2011 came March 2, when Jobs took a San Francisco stage to unveil the next-generation iPad 2. The 9.7-inch tablet featured a dual-core processor, front- and rear-facing cameras, and a thinner body.

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Massive Lines

The iPad 2 hit store shelves March 11. In New York City, hundreds of people lined up at Apple stores, anxious to get their hands on the tablet.

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Mac OS X Lion

By the end of February, Apple had released a developer preview of Mac OS X Lion, the next version of its PC operating system. In June, Jobs and other executives took to the stage at San Francisco's Moscone Center to profile the operating system's new features.

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Mac App Store

Apple's Mac App Store also launched in January, starting off with more than 1,000 free and paid applications for Mac OS X.

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MacBook Air Becomes Default

Apple released Lion in mid-July. That was combined with the termination of the company's iconic white MacBook, which made its lowest-priced MacBook Air the company's default entry-level laptop.

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iPhone 4S

Instead of the long-anticipated "iPhone 5," Apple's new iPhone in 2011 was the "iPhone 4S," which seemed virtually identical in appearance to the iPhone 4. Nonetheless, it boasted a more powerful processor along with Siri, a "personal digital assistant" that responded to the user's voice queries.

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iOS 5 and Siri

The iPhone 4S also came loaded with iOS 5, a significant upgrade to the company's mobile operating system.

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Apple's robust device sales, and the increasing size of its retail footprint, allowed it to fend off various rivals seeking to eat substantially into its smartphone and tablet market shares.

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Steve Jobs

On Oct. 5, Apple announced Steve Jobs' death, its Website opening with a black-and-white photo of him. The accompanying statement read: "Apple has lost a visionary and a creative genius, and the world has lost an amazing human being."??í

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