volume table of contents

from The Free On-line Dictionary of Computing (8 July 2008)

Volume Table Of Contents
VTOC

   <storage> (VTOC) /V-tock/ A special {file} on a {disk}, which
   contains a list of all the ordinary files on the disk and
   their {addresses}.  Also called a {directory}.

   The term is used mostly with large {mainframe} {disk drives}.
   Storage administrators will often refer to the VTOC to obtain
   information on the number of files stored on a disk.

   (1997-04-15)