Exhibit 11.1 INTEGRAL SYSTEMS, INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE Three Months Ended Twelve Months Ended September 30, September 30, Basic: 2001 2000 1999 2001 2000 1999 ----------- ----------- ----------- ----------- ----------- ----------- Weighted average number of common shares 9,490,411 9,426,068 7,802,991 9,462,166 8,829,182 6,969,090 Income from Continuing Operations $ $0.12 $ $0.08 $ $0.13 $ 0.42 $ 0.42 $ 0.43 Income from Discontinued Operations $ $0.00 $ $0.00 $ $0.00 $ 0.00 $ 0.01 $ 0.03 Gain on Disposal of Discontinued Segment $ $0.00 $ 0.04 $ $0.00 $ 0.00 $ 0.04 $ 0.00 ----------- ----------- ----------- ----------- ----------- ----------- Net Income $ 0.12 $ 0.12 $ 0.13 $ 0.42 $ 0.47 $ 0.46 Diluted: Weighted average number of common shares 9,742,545 9,598,615 8,331,158 9,672,833 9,283,546 7,422,601 Income from Continuing Operations $ 0.12 $ 0.08 $ $0.12 $ 0.41 $ 0.40 $ 0.40 Income from Discontinued Operations $ 0.00 $ 0.00 $ 0.00 $ 0.00 $ 0.01 $ 0.03 Gain on Disposal of Discontinued Segment $ 0.00 $ 0.04 $ 0.00 $ 0.00 $ 0.04 $ 0.00 ----------- ----------- ----------- ----------- ----------- ----------- Net Income $ 0.12 $ 0.12 $ 0.12 $ 0.41 $ 0.45 $ 0.43