EXHIBIT 11.1 GOVERNMENT TECHNOLOGY SERVICES, INC. COMPUTATION OF EARNINGS PER SHARE (In thousands, except per share amounts) THREE SIX MONTHS ENDED MONTHS ENDED JUNE 30, JUNE 30, ------------------ ------------------ 1999 1998 1999 1998 -------- -------- -------- -------- Net income (loss) . . . . . . . . . . . . . . . . . . . . . $ 69 $ 168 $ (1,824) $(3,341) Basic: Weighted average shares of common stock outstanding . . . 9,200 8,422 9,332 7,589 Net loss per common share and common share equivalent . . $ 0.01 $ 0.02 $ (0.20) $ (0.44) Diluted: Weighted average shares of common stock outstanding . . . 9,859 8,631 9,332 7,589 Net loss per common share and common share equivalent . . $ 0.01 $ 0.02 $ (0.20) $ (0.44)