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        <link:definition>101 - Statement - Statement Of Income</link:definition>
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        <link:definition>102 - Statement - Statement Of Financial Position Classified</link:definition>
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        <link:definition>103 - Statement - Statement Of Cash Flows Indirect</link:definition>
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        <link:definition>104 - Disclosure - 1.Basis of Presentation</link:definition>
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        <link:definition>105 - Disclosure - 2.Recently Issued Accounting Standards</link:definition>
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        <link:definition>106 - Disclosure - 3.Concentration of Credit Risks and Significant Customers</link:definition>
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        <link:definition>107 - Disclosure - 4.Financial Instruments and Hedging Activities</link:definition>
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        <link:definition>108 - Disclosure - 5.Fair Value Measurements</link:definition>
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        <link:definition>109 - Disclosure - 6.Stock-Based Compensation</link:definition>
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        <link:definition>110 - Disclosure - 7.Income Taxes</link:definition>
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        <link:definition>111 - Disclosure - 8.Restructuring Reserve</link:definition>
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        <link:definition>112 - Disclosure - 9.Deferred Compensation</link:definition>
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        <link:definition>113 - Disclosure - 10.Computer Equipment, Software, Furniture and Leasehold Improvements, Net</link:definition>
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        <link:definition>114 - Disclosure - 11.Purchased Technologies, Net</link:definition>
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        <link:definition>115 - Disclosure - 12.Goodwill</link:definition>
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        <link:definition>116 - Disclosure - 13.Borrowing Arrangements</link:definition>
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        <link:definition>117 - Disclosure - 14.Commitments and Contingencies</link:definition>
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        <link:definition>118 - Disclosure - 15.Stock Repurchase Program</link:definition>
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        <link:definition>119 - Disclosure - 16.Comprehensive Income</link:definition>
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        <link:definition>120 - Disclosure - 17.Net Income Per Share</link:definition>
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        <link:definition>121 - Disclosure - 18.Segments</link:definition>
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        <link:definition>122 - Disclosure - 19.Subsequent Events</link:definition>
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        <link:definition>123 - Disclosure - Document Information</link:definition>
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        <link:definition>124 - Disclosure - Entity Information</link:definition>
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