ISO Image
An ISO image is a disk image file that contains an exact copy of the data from an optical disc, such as a CD, DVD, or Blu-ray, stored in the ISO 9660 file system format. It is commonly used for distributing operating systems, software, and large datasets, as it preserves the original structure and boot information. Developers and system administrators use ISO images to create bootable media, virtual machine disks, or for archival purposes.
Developers should learn about ISO images when working with software distribution, system deployment, or virtualization, as they provide a reliable way to package and replicate entire disc contents. Use cases include creating bootable USB drives for installing operating systems like Linux distributions, mounting images in virtual machines for testing environments, and distributing software or game installations without physical media. It is essential for tasks involving disk cloning, backup, and cross-platform compatibility.