definition of image on a computer
ISO Image. Definition. An ISO image (or ISO file) is a computer file that is an exact copy of an existing file system which contains the complete contents of a CD disc or other disk. ISO images are often created to backup a CD or distribute CD's over the Internet.This term was viewed 8,413 times.n ISO image (or ISO file) is a computer file that is an exact copy of an existing file system which contains the complete contents of a CD disc or other disk. ISO images are often created to backup a CD or distribute CD's over the Internet. This term was viewed 8,413 times.