Exhibit 11.1 INTEGRAL SYSTEMS INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended Nine Months Ended June 30, June 30, 2002 2001 2002 2001 -------------- -------------- -------------- -------------- Numerator: Net Income $ 959,707 $ 1,005,488 $ 2,009,412 $ 2,845,761 Denominator: Denominator for basic earnings per share-weighted-average shares 9,225,046 9,464,818 9,139,669 9,452,751 Effect of dilutive securities: Employee stock options 156,999 225,352 129,772 118,196 Denominator for diluted earnings per share adjusted weighted-average shares and assumed conversions 9,382,045 9,690,170 9,269,441 9,570,947 Basic earnings per share $ 0.10 $ 0.11 $ 0.22 $ 0.30 Diluted earnings per share $ 0.10 $ 0.10 $ 0.22 $ 0.30 -21-