CONCURRENT COMPUTER CORPORATION EXHIBIT 11 BASIC AND DILUTED EARNINGS (LOSS) PER SHARE COMPUTATION THREE MONTHS ENDED SIX MONTHS ENDED DECEMBER 31, 2001 DECEMBER 31, 2001 ------------------- ------------------- BASIC DILUTED BASIC DILUTED -------- --------- -------- --------- Average outstanding shares 61,031 61,031 60,297 60,297 Dilutive effect of options and warrants - 3,730 - - -------- --------- -------- --------- Equivalent Shares 61,031 64,761 60,297 60,297 ======== ========= ======== ========= Net income (loss) $ 56 $ 56 $(2,954) $ (2,954) ======== ========= ======== ========= Earnings (loss) per share $ 0.00 $ 0.00 $ (0.05) $ (0.05) ======== ========= ======== ========= THREE MONTHS ENDED SIX MONTHS ENDED DECEMBER 31, 2000 DECEMBER 31, 2000 ------------------- ------------------- BASIC DILUTED BASIC DILUTED -------- --------- -------- --------- Average outstanding shares 54,675 54,675 54,332 54,332 Dilutive effect of options and warrants - - - - -------- --------- -------- --------- Equivalent Shares 54,675 54,675 54,332 54,332 ======== ========= ======== ========= Net income (loss) $(4,158) $ (4,158) $(5,952) $ (5,952) ======== ========= ======== ========= Earnings (loss) per share $ (0.08) $ (0.08) $ (0.11) $ (0.11) ======== ========= ======== ========= -22-