EXHIBIT 11.1 ADAC LABORATORIES COMPUTATION OF NET INCOME PER SHARE (AMOUNTS IN THOUSANDS, EXCEPT PER SHARE DATA) (UNAUDITED) Three Months Ended ------------------ December 31, January 1, 1995 1995 ------------ ---------- Average shares outstanding 17,051 16,081 Net effect of dilutive stock options and warrants 659 614 ------- ------- Average common and common equivalent shares outstanding 17,710 16,695 ======= ======= Net income $ 3,541 $ 2,430 ======= ======= Net income per share $ 0.20 $ 0.15 ======= ======= Primary and fully diluted income per share differs by less than three percent in all periods. 11