Files on a computer are stored on a shiny disk called the hard drive. The computer has a list of where files are stored on the hard drive so it can locate them when the user wants to access them. When you delete a file, the computer deletes it from the list but not the hard drive itself, so it still exists in the memory but cannot be located. It is ‘lost’ in a certain sense. The computer can overwrite old files when creating new files, so eventually the ‘deleted’ file might actually be deleted from the hard drive, if the computer needs the space.
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