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Reconciliations of non-GAAP consolidated results of operations to the nearest comparable GAAP measures

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The following table presents certain non-GAAP consolidated results before certain items (in millions, except share amounts which are reflected in thousands and per share amounts, unaudited):

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Three months ended March 31, 2013 Three Months Ended March 31, 2014

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GAAP Adjustment Non-GAAP GAAP Adjustment Non-GAAP

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Revenues $12,951 0 $12,951 $15,420 0 $15,420

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Costs and expenses:

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Cost of revenues 5,136 $(99) (b) 5,037 5,961 $(95) (b) 5,866

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Research and development 1,617 (338) (b) 1,279 2,126 (456) (b) 1,670

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Sales and marketing 1,435 (118) (b) 1,317 1,729 (147) (b) 1,582

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General and administrative 1,015 (100) (b) 915 1,489 (141) (b) 1,348

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Total costs and expenses 9,203 (655) 8,548 11,305 (839) 10,466

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Income from operations 3,748 655 4,403 4,115 839 4,954

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Operating margin (a) 28.9% 34.0% 26.7% 32.1%

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Interest and other income, net 134 0 134 357 0 357

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Income from continuing operations before income taxes 3,882 655 4,537 4,472 839 5,311

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Provision for income taxes 354 141 (c) 495 822 190 (c) 1,012

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Net income from continuing operations 3,528 514 4,042 3,650 649 4,299

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Net loss from discontinued operations (182) 182 (d) 0 (198) 198 (d) 0

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Net income $3,346 $696 $4,042 $3,452 $847 $4,299

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Net income per share - diluted $4.97 $6.00 5.04 6.27

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Shares used in per share calculation - diluted 673,326 673,326 685,212 685,212

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(a) Operating margin is defined as consolidated income from operations divided by revenues.
Non-GAAP operating margin is defined as non-GAAP consolidated income from operations divided by revenues.

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(b) To eliminate stock-based compensation expense.

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(c) To eliminate income tax effects related to stock-based compensation expense.

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(d) To eliminate net loss from discontinued operations.