ST - 412

       UNFORMATTED CAPACITY (MB) ________________12.76
       FORMATTED CAPACITY (32 SECTORS) (MB) _____10.0
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________1,224
       CYLINDERS ________________________________306
       HEADS ____________________________________4
       DISCS ____________________________________2
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________MFM
       TRANSFER RATE (mbits/sec) ________________5.0
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________345
       BPI (BITS PER INCH) ______________________9,074
       AVERAGE ACCESS (ms) ______________________85
       SINGLE TRACK SEEK (ms) ___________________< 16.67
       MTBF (power-on hours) ____________________11,000
       POWER REQUIREMENTS: +12V START-UP (amps) _3.5
                           +12V TYPICAL (amps) __1.7
                           +5V TYPICAL (amps) ___1.1
                           TYPICAL (watts) ______25.9
                           MAXIMUM (watts) ______50.5
       BUFFERED STEP PULSE RATE (micro sec) _____5-500
       WRITE PRECOMP (cyl) ______________________128
       REDUCED WRITE CURRENT (cyl) ______________N/A (307)
       LANDING ZONE (cyl)________________________320
       IBM AT DRIVE TYPE ________________________1