So, you know how we save our files in the computer, right? We save them on what we call a "disk" or a "hard disk" or "hard drive." It's like a big drawer where we can put our files so we can easily find them again when we need to.
Now, disk copy is when we make an exact copy of everything that's in that big drawer. It's like making a photocopy of all the things we put inside the drawer. This is useful when we want to have a backup of all our important files, just in case the original ones get lost or damaged.
We can do this by using a special software or program, that will copy everything in the drawer and put it into a new one, like magic. The new disk will be exactly the same as the old one, with all our files still there, but now we have two of them! This way, we can keep one at home and one at work, or give one to a friend, or just keep it safe in case something happens to the original one.
It's important to remember that the new disk copy will have the same files as the original one, so we have to make sure we only copy the things we really need and not any viruses or bad stuff that might be hiding in there. But as long as we're careful, disk copy can be a really great way to keep our files safe and secure.