What does Access path mean?

Access path meaning in Computer Science Dictionary

The accessibility path is the place Microsoft DOS or Windows seems when a command is certainly not an inside demand or perhaps in the present directory. For example, whenever typing in "fdisk" as a command, in the event that accessibility road is certainly not set-to the place of fdisk.exe, might receive a "bad command or file name" error message. Although this file exists somewhere else using the pc.