Exhibit 11.1 INTEGRAL SYSTEMS, INC. AND SUBSIDIARIES COMPUTATION OF EARNINGS PER SHARE 2002 2001 2000 ------------ ------------ ------------ Numerator: Income from continuing operations $2,623,415 $4,011,120 $3,712,828 Income from discontinued operations $0 $0 $129,374 Gain on disposal of discontinued segment $0 $0 $335,181 ------------ ------------ ------------ Net income $2,623,415 $4,011,120 $4,177,383 Denominator: Denominator for basic earnings per share - weighted-average shares 9,174,831 9,462,166 8,829,182 Effect of dilutive securities: Employee stock options 57,788 210,667 454,364 Denominator for diluted earnings per share adjusted weighted-average shares and assumed conversions 9,232,619 9,672,833 9,283,546 Basic earnings per share: Income from continuing operations $0.29 $0.42 $0.42 Income from discontinued operations $0.00 $0.00 $0.01 Gain on disposal of discontinued segment $0.00 $0.00 $0.04 ------------ ------------ ------------ Net income $0.29 $0.42 $0.47 Diluted earnings per share: Income from continuing operations $0.28 $0.41 $0.40 Income from discontinued operations $0.00 $0.00 $0.01 Gain on disposal of discontinued segment $0.00 $0.00 $0.04 ------------ ------------ ------------ Net income $0.28 $0.41 $0.45