However, ISO files are used for much greater purposes when it comes to operating systems. You can use it to transfer a game, for instance, from an old disk to your laptop when there is no physical disk around.
Its actual function is to replicate an original optical disk and store it until it is needed to burn a new disk having the same data within it. Many people use ISO files to back up their optical disks or store their data in a more functional way. In order to perform its function, the ISO file needs to be opened and assembled so the data can be viewed. This file, which is also sometimes referred to as an ISO image, is a smaller sized duplicate of large sets of data. An ISO file is an exact copy of an entire optical disk such as a CD, DVD, or Blu-ray archived into a single file.