Unlike RAM, ROM is read only, meaning its instructions can be retrieved by the processor, but cannot be changed nor can new information be added to it. The content of ROM is hard wired and hard coded on the system mother board called FIRMWARE. THE CONTENT ON THE ROM chips are non volatile and are therefore not erased when the computer is turned off. This makes the ROM ideal for storing the computer devices most basic operations and common instructions. It is also used to provide control programs for the computers’ operations and peripheral devices.