Exhibit 12 UNISYS CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (UNAUDITED) ($ in millions) Three Months Ended March 31, Years Ended December 31 ------------------------------------ 1997 1996 1995 1994 1993 1992 ---- ---- ---- ---- ---- ---- Income (loss) from continuing operations before income taxes $ 30.6 $ 93.7 $(781.1) $ 14.6 $370.9 $301.3 Add (deduct) share of loss (income) of associated companies ( .1) ( 4.9) 5.0 16.6 14.5 3.2 ------ ------ ------- ------ ------ ------ Subtotal 30.5 88.8 (776.1) 31.2 385.4 304.5 ------ ------ ------- ------ ------ ------ Interest expense (net of interest capitalized) 60.4 249.7 202.1 203.7 241.7 340.6 Amortization of debt issuance expenses 1.8 6.3 5.1 6.2 6.6 4.8 Portion of rental expense representative of interest 14.8 59.2 65.3 65.0 70.5 78.8 ------ ------ ------- ------ ------ ------ Total Fixed Charges 77.0 315.2 272.5 274.9 318.8 424.2 ------ ------ ------- ------ ------ ------ Earnings (loss) from continuing operations before income taxes and fixed charges $107.5 $404.0 $(503.6) $306.1 $704.2 $728.7 ====== ====== ======= ====== ====== ====== Ratio of earnings to fixed charges 1.40 1.28 (a) 1.11 2.21 1.72 ====== ====== ======= ====== ====== ====== <FN> (a) Earnings for the year ended December 31, 1995 was inadequate to cover fixed charges by approximately $776.1 million.