Disk image

A disk image is like a picture or a copy of a whole bunch of computer stuff that is saved on a disk, like a DVD or a flash drive. Imagine you have a big puzzle, and you want to take a picture of it so you can see what the finished puzzle looks like, even if you take it apart.

Similarly, a disk image is like taking a picture of all the programs, documents or files that are on a computer's hard drive. This way, you can keep a copy of everything in one place and use it again if something goes wrong or you want to use it on a different computer.

Think of it like having a box that holds important things like your toys, books, and clothes. Sometimes, you might want to take a picture of everything inside the box so you can remember what you have in there. This way, if you lose something, you can look at the picture and find out what's missing.

So, a disk image is a snapshot of all the computer stuff saved in one place, in case you need it later.