EXHIBIT 12 INTER(BULLET)ACT SYSTEMS, INCORPORATED COMPUTATION OF DEFICIENCY OF EARNINGS AVAILABLE TO COVER FIXED CHARGES (AMOUNTS IN 000S) FOR THE PERIOD FROM NINE MONTHS ENDED FOR THE PERIOD FROM FEBRUARY 25, 1993 YEAR ENDED JULY FEBRUARY 25, 1993 (DATE OF INCEPTION) TO SEPTEMBER 30, 1, JUNE 29, (DATE OF INCEPTION) TO SEPTEMBER 30, 1993 1994 1995 1995 1996 JUNE 29, 1996 Loss from operations................. $1,295 $2,267 $4,427 $3,015 $5,638 $ 13,627 Interest expense..................... -- 87 188 120 111 386 Deficiency of earnings available to cover fixed charges................ $1,295 $2,354 $4,615 $3,135 $5,749 $ 14,013