DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   track
      <storage> The part of a disk which passes under one
      read/write head while the head is stationary.  The number of
      tracks on a disk surface therefore corresponds to the number
      of different radial positions of the head(s).  The collection
      of all tracks on all surfaces at a given radial position is
      known a cylinder and each track is divided into sectors.
      (1997-07-15)