#ROM__read-only_memory__read-only_storage__fixed_storage__fixedstorage  (computer science) memory whose contents can be accessed and read but cannot be changed
  supertype:  memory_board__memory__storage__store  an electronic memory device; "a memory and the CPU form the central part of a computer to which peripherals are attached"
  subtype:  CD-ROM__compact_disc_read-only_memory  a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
  subtype:  EPROM__erasable_programmable_read-only_memory  (computer science) a read-only memory chip that can be erased by ultraviolet light and programmed again with new data

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