EXHIBIT 11 COMPUTER SCIENCES CORPORATION AND SUBSIDIARIES Exhibit XI, Calculation of Primary and Fully Diluted Earnings Per Share (Dollars in thousands, except per share amounts) Year ended ------------------------------------------------------------------------------------------- March 31, April 1, April 2, April 3, March 29, 1995 1994 1993 1992 1991 ----------- ----------- ----------- ----------- ----------- NET EARNINGS - ------------ Before cumulative effect of accounting change $ 110,739 $ 90,930 $ 78,149 $ 68,277 $ 64,991 Cumulative effect of accounting change 4,900 ----------- ----------- ----------- ----------- ----------- After cumulative effect of accounting change $ 110,739 $ 95,830 $ 78,149 $ 68,177 $ 64,991 =========== =========== =========== =========== =========== SHARES - ------ Average shares outstanding 51,425,723 50,234,161 49,436,079 48,739,197 47,926,185 Common stock equivalents 1,549,226 1,151,043 839,427 907,563 592,017 ----------- ----------- ----------- ----------- ----------- Total for primary calculation 52,974,949 51,385,204 50,275,506 49,646,760 48,518,202 Additional for fully diluted calculation 147,190 290,104 146,202 489,720 ----------- ----------- ----------- ----------- ----------- Total for fully diluted calculation 53,123,139 51,675,308 50,421,708 49,646,760 49,007,922 =========== =========== =========== =========== ===========