Read-only
Encyclopedia
In computing, read-only can mean:
  • Read-only memory
    Read-only memory
    Read-only memory is a class of storage medium used in computers and other electronic devices. Data stored in ROM cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distribute firmware .In its strictest sense, ROM refers only...

     (ROM), a type of storage media
  • Read-only access to files or directories in file system permissions
    File system permissions
    Most current file systems have methods of administering permissions or access rights to specific users and groups of users. These systems control the ability of the users to view or make changes to the contents of the filesystem....

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