Exhibit 11.1 INTEGRAL SYSTEMS INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended Nine Months Ended June 30, June 30, Basic: 2000 1999 2000 1999 -------------- ------------- -------------- -------------- Weighted average number of common shares 8,754,657 6,342,882 7,980,220 6,043,982 Net Income $861,356 $1,074,535 $2,908,909 $2,359,702 Earnings per share Income from Continuing $0.10 $0.16 $0.35 $0.36 Income from Discontinued $0.00 $0.01 $0.01 $0.03 ----- ----- ----- ----- Net Income $0.10 $0.17 $0.36 $0.39 ===== ===== ===== ===== Diluted: Weighted average number of 9,057,622 6,881,653 8,472,870 6,512,550 common shares Net Income $861,356 $1,074,535 $2,908,909 $2,359,702 Earnings per share Income from Continuing $0.10 $0.15 $0.33 $0.33 Income from Discontinued $0.00 $0.01 $0.01 $0.03 ----- ----- ----- ----- Net Income $0.10 $0.16 $0.34 $0.36 ===== ===== ===== ===== -19-