Mount

1. Commonly, mount is a term used with a Unix / Linux machine where the mount command makes a directory accessible by attaching a root directory of one file system to another directory. This makes the other directory or device appear as a directory or subdirectory of that system.
   
   Additional information about the Unix mount and unmount commands can be found here.
   
   
2. Group of files in a file system accessible to a user or group of users.
3. With a Macintosh, mounting refers to when a disc is placed into a machine.
4. To make a hardware device physically accessible.

Also see: Dismount