>'UTIL17
>N1
>f
 
 
                              pex - utility
                                  - # -
>X
pex
===
 
 
tHE pex uTILITY IS A dISKETTE eXERCISE uTILITY.  iT ALLOWS THE USER TO MOVE THE HEAD TO ANY CYLINDER (FOR ALIGNMENT PURPOSES), OR TO MOVE THE HEAD IN A CONTINUOUS MOTION (FOR CLEANING DISK PURPOSES).  tHE SYNTAX OF THE pex COMMAND IS:
 
          =====================================================
          !  pex,:A,BBB                                       !
          !                                                   !
          !          :A  = DRIVE NUMBER (0-7, COLON OPTIONAL) !
          !          BBB = CYLINDER COUNT                     !
          !               (OPTIONAL IF FORMATTED DISK MOUNTED)!
          !                                                   !
          !  ABBR: none                                       !
          =====================================================
 
     oNCE THE SPECIFIED COMMAND HAS BEEN ENTERED, THE SPECIFIED DRIVE HEAD WILL BE RESTORED (MOVED TO CYLINDER 0), AND A SUB-MENU WILL BE DISPLAYED.  sEVERAL KEYS ARE RECOGNIZED BY THE PROGRAM AT THIS POINT:
 
d      ALLOWS YOU TO SPECIFY A NEW DRIVE NUMBER
c      ALLOWS YOU TO MOVE THE HEAD TO ANY CYLINDER
s      SET A NEW STEP RATE FOR THE DRIVE
a      AUTOMATICALLY STEP FROM CYLINDER 0 TO THE TOP CYLINDER
r      MOVE THE HEAD TO CYLINDER 0
t      MOVE THE HEAD TO THE TOP CYLINDER
 
     iF THE AUTOMATIC MODE HAS BEEN SET, ANY OF THE OTHER COMMANDS WILL TERMINATE THE OPERATION.  pRESSING break AT ANY TIME WILL ABORT THE PROGRAM AND RETURN CONTROL TO ldos.
 
     iF YOU HAVE A HEAD CLEANING DISKETTE, THE AUTOMATIC MODE MAY BE USED TO MOVE THE HEAD ACROSS THE DISKETTE.  uSE DIRECTIONS SUPPLIED BY THE HEAD CLEANING MANUFACTURER.  yOU MAY TURN THE SYSTEM CLOCK ON PRIOR TO ENTRY INTO THE PROGRAM TO HAVE A SECONDS TIMER AVAILABLE.  iT IS NOT ADVISABLE TO RUN pex ON ANY ONE DRIVE FOR MORE THAN 15-30 SECONDS AT A TIME WHILE THE HEAD CLEANING DISK IS IN PLACE.  aLTHOUGH MOST MANUFACTURERS CLAIM THAT THE KITS ARE NON-ABRASIVE, TOO MUCH OF A GOOD THING COULD MEAN TROUBLE, AND THIS MEANS head wear.  pLEASE FOLLOW YOUR KITS INSTRUCTIONS.  wE SUGGEST THAT IF YOU ONLY USE YOUR COMPUTER A FEW HOURS A DAY, THEN one CLEANING A YEAR SHOULD BE SUFFICIENT.  eVEN HEAVY USERS SHOULD ONLY CLEAN ONCE A MONTH OR LESS.  yOU'LL NOTICE THAT THE HEAD CLEANING KIT DOES NOT TELL YOU how TO ACTUALLY CLEAN THE HEAD.  mOST PEOPLE SIMPLY INSERT THE DISK, AND BOOT THE SYSTEM.  tHIS DOES not DO THE JOB, AND OF COURSE, WILL ONLY WORK ON THE DRIVE 0 DISK.  aREN'T YOU GLAD YOU HAVE pex?

