1 GOVERNMENT TECHNOLOGY SERVICES, INC. EXHIBIT 11 COMPUTATION OF EARNINGS PER SHARE (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) THREE MONTHS ENDED NINE MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, 1999 1998 1999 1998 ------ ------ ------ ------ Net Income 2,748 3,960 923 618 Basic weighted average shares of common 9,211 9,788 9,291 8,333 stock outstanding Net loss per common share and common (Basic) 0.30 0.40 0.10 0.07 share equivalent Diluted weighted average shares of common 9,308 9,849 9,406 8,562 stock outstanding Net loss per common share and common (Basic) 0.30 0.40 0.10 0.07 share equivalent