As a supplement to the Company's condensed consolidated financial statements presented in accordance with generally accepted accounting principles ("GAAP"), the Company provides additional non-GAAP measures for cost of revenues, gross profit, gross profit percentage, research and development expense, net, selling, general and administrative expense, amortization of purchased intangible assets, other income (expense), benefit from (provision for) income taxes, operating expenses, operating (loss) income, operating margin, net (loss) income, and net income per share - basic and diluted.

A non-GAAP financial measure is a numerical measure of a company's performance, financial position, or cash flows that either excludes or includes amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with GAAP. The Company believes that the additional non-GAAP measures are useful to investors for the purpose of financial analysis. Management uses these measures internally to evaluate the Company's in-period operating performance before gains, losses and other charges that are considered by management to be outside of the Company's core operating results. In addition, the measures are used for planning and forecasting of the Company's future periods. However, non-GAAP measures are not in accordance with, nor are they a substitute for, GAAP measures. Other companies may use different non-GAAP measures and presentation of results.