EXHIBIT 28 COMPUTER SCIENCES CORPORATION REVENUES BY MARKET SECTOR (In millions) Fiscal Period Ended % of Total --------------------- -------------------- Dec. 26, Dec. 27, Dec. 26, Dec. 27, 1997 1996 1997 1996 -------- --------- -------- -------- THIRD QUARTER Global commercial: U.S. commercial $ 712.3 $ 539.7 43% 38% Europe 470.4 399.5 28 28 International 100.6 90.8 6 6 -------- -------- -------- -------- Total 1,283.3 1,030.0 77 72 U.S. federal government: Department of Defense 251.1 256.2 15 18 NASA 68.0 72.7 4 5 Civil agencies 61.7 62.7 4 5 -------- -------- -------- -------- Total 380.8 391.6 23 28 -------- -------- -------- -------- Total revenues $1,664.1 $1,421.6 100% 100% --------- -------- -------- -------- NINE MONTHS Global commercial: U.S. commercial $1,996.9 $1,539.2 42% 38% Europe 1,260.0 1,047.2 27 26 International 303.1 264.9 6 6 -------- -------- -------- -------- Total 3,560.0 2,851.3 75 70 U.S. federal government: Department of Defense 772.1 806.6 16 20 NASA 224.6 223.4 5 5 Civil agencies 175.0 199.5 4 5 -------- -------- -------- -------- Total 1,171.7 1,229.5 25 30 -------- -------- -------- -------- Total revenues $4,731.7 $4,080.8 100% 100% ======== ======== ======== ========