No concept is more fundamental to using computers than the ideas contained in file and path names. Once you fully understand the way information is stored and organized on a computer, using one becomes much easier. Some basic facts. All information, programs, software, device drivers , sounds, pictures, word processing documents, etc. used on a computer are stored as files.
File names serve to identify what something is and where it is stored in the computer.
This information tells you the logical organization of the file storage system. After booting up the computer, the OS sets some directory as the default or current directory. This is simply the directory where, in the absence of other information, the computer will look for or store information. It is often the root directory, which is the top level on the bootable hard disk drive. Many File Dialog boxes also have a file extension box as well.