EXHIBIT 28 COMPUTER SCIENCES CORPORATION REVENUES BY MARKET SECTOR (In millions) Fiscal Period Ended % of Total ---------------------- ---------------------- Jan. 1, Dec. 26, Jan. 1, Dec. 26, 1999 1997 1999 1997 --------- --------- --------- --------- THIRD QUARTER Global commercial: U.S. commercial $ 785.5 $ 712.3 41% 43% Europe 608.5 470.4 31 28 Other International 120.5 100.6 6 6 --------- --------- --------- --------- Total 1,514.5 1,283.3 78 77 U.S. federal government: Department of Defense 244.5 251.1 13 15 Civil agencies 168.9 129.7 9 8 --------- --------- --------- --------- Total 413.4 380.8 22 23 --------- --------- --------- --------- Total revenues $1,927.9 $1,664.1 100% 100% ======== ======== ========= ========= NINE MONTHS Global commercial: U.S. commercial $2,247.9 $1,996.9 41% 42% Europe 1,640.0 1,260.0 30 27 Other International 343.9 303.1 6 6 --------- --------- --------- --------- Total 4,231.8 3,560.0 77 75 U.S. federal government: Department of Defense 810.2 772.1 14 16 Civil agencies 487.6 399.6 9 9 --------- --------- --------- --------- Total 1,297.8 1,171.7 23 25 --------- --------- --------- --------- Total revenues $5,529.6 $4,731.7 100% 100% ========= ========= ========= =========