
Apple Disk Image is a disk image format commonly used by the macOS operating system. Notice that the Recovery HD is only 650MB, but Mac OS X Base System is 1.4GB? That's because it's a compressed disk image (and I'm pretty sure that compression is the reason they bother with all this disk image. The booter mounts this volume (it attaches as /dev/disk1), and transfers to OS X running on it. Use Disk Utility bundled with every Mac OS X environment: Launch Disk Utility > FILE menu > Open disk image. Mac OS 7.0 to Mac OS 9.2.2: Virtual DVD-ROM/CD Utility Mac OS 8.5 to Mac OS 9.2.2: Toast 5 Titanium How to burn/clone disk images onto USB sticks super easily under Windows and under Mac OS X It will mount as it were a hard drive on the emulated desktop. Namely, SheepShaver, QEMU and Basilisk II all support you attach a. ISO images can also be attached to almost all emulators since it's universal. iso file makes a new drive appear on your OS, effectively letting you use it as if you had the original media inserted.

You can also browse and extract specific files from ISO images using small shareware utilities such as PowerISO. ISO images are mountable and burnable/clonable onto real media universally (on any OS). How to use or extract ISO images contents? ISO images have been the most used file format for cloning or duplicating disks for a very long time, namely since the late 1980's along with the first consumer CD-ROM products. iso file is a disk image, meaning it's an exact copy (sector by sector) of a disk, e.g.: CD, DVD, USB stick, hard drive, etc.
