EXHIBIT 11.1 SYNC RESEARCH, INC. COMPUTATION OF NET INCOME (LOSS) PER SHARE YEARS ENDED DECEMBER 31, ------------------------------------------- 1996 1995 1994 ------------- ------------- ------------- NET LOSS PER COMMON SHARE: Net loss............................................................ $ (9,433,000) $ (1,990,000) $ (1,331,000) Accretion of cumulative dividend and redemption value of mandatorily redeemable preferred stock........................................ (486,000) (1,163,000) (639,000) ------------- ------------- ------------- Net loss attributable to common stockholders........................ $ (9,919,000) $ 3,153,000 $ (1,970,000) ------------- ------------- ------------- ------------- ------------- ------------- Calculation of shares outstanding for computing net income (loss) per share: Weighted average common and common equivalent shares outstanding used in calculating net loss per common share in accordance with generally accepted accounting principles................. 16,289,085 6,818,913 4,275,105 Adjustments to reflect requirements of the SEC in accordance with SAB 83............................................................ -- 1,106,559 1,706,778 ------------- ------------- ------------- Shares used in computing net loss per common share.................. 16,289,085 7,925,472 5,981,883 ------------- ------------- ------------- Net loss per common share........................................... $ (0.61) $ (0.40) $ (0.33) ------------- ------------- ------------- ------------- ------------- ------------- YEARS ENDED DECEMBER 31, ---------------------------- 1995 1994 ------------- ------------- PRO FORMA NET LOSS PER COMMON SHARE: Net loss........................................................................... $ (1,990,000) $ (1,331,000) Accretion of cumulative dividend and redemption value of mandatorily redeemable preferred stock.................................................................. (1,163,000) (639,000) ------------- ------------- Net loss attributable to common stockholders....................................... $ (3,153,000) $ (1,970,000) ------------- ------------- ------------- ------------- Calculation of shares outstanding for computing pro forma net loss per common share: Weighted average common and common equivalent shares outstanding used in calculating net loss per common share in accordance with generally accepted accounting principles........................................................ 6,818,913 4,275,105 Adjustment to reflect requirements of the SEC in accordance with SAB 83............ 1,106,559 1,706,778 Adjustment to reflect the effects of the assumed conversion of convertible preferred stock from date of issuance............................................ 6,526,114 7,285,432 ------------- ------------- Shares used in computing pro forma net loss per common share....................... 14,451,586 13,267,315 ------------- ------------- Pro forma net loss per common share................................................ $ (0.22) $ (0.15) ------------- ------------- ------------- ------------- 53