Exhibit 11.1 INTEGRAL SYSTEMS INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended Nine Months Ended June 30, June 30, 2001 2000 2001 2000 -------------- ----------- ------------- ------------- Basic: Weighted average number of common shares 9,464,818 9,404,657 9,452,751 8,630,220 Net Income $1,005,488 $ 834,306 $2,845,761 $3,037,249 Earnings per share Income from Continuing Operations $ 0.11 $ 0.09 $ 0.30 $ 0.34 Income from Discontinued Operations $ 0.00 $ 0.00 $ 0.00 $ 0.01 ----- ----- ----- ----- Net Income $ 0.11 $ 0.09 $ 0.30 $ 0.35 ===== ===== ===== ===== Diluted: Weighted average number of common shares 9,690,170 9,707,622 9,570,947 9,122,870 Net Income $1,005,488 $ 834,306 $2,845,761 $3,037,249 Earnings per share Income from Continuing Operations $ 0.10 $ 0.09 $ 0.30 $ 0.32 Income from Discontinued Operations $ 0.00 $ 0.00 $ 0.00 $ 0.01 ----- ----- ----- ----- Net Income $ 0.10 $ 0.09 $ 0.30 $ 0.33 ===== ===== ===== ===== -20-