This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Suppose the file BARDS2.PIC is in the folder PICS on the diskette (volume) named "NARF". Then ... /NARF/PICS/BARDS2.PIC is BARDS2.PIC's complete "pathname". /NARF/PICS/ is a "pathname prefix" for all files in the PICS directory on the volume named "NARF". A leading "/" indicates a volume name (/NARF). The "main directory" or "root directory" is the one in which the files PRODOS and BASIC.SYSTEM (along with any other files the user wants there) are usually located on a ProDOS diskette. NARF's main directory pathname prefix is just /NARF/. ______________________ By: Rubywand and David Empson