#disk_cache  a cache that stores copies of frequently used disk sectors in random access memory (RAM) so they can be read without accessing the slower disk
  supertype:  memory_cache__cache  (computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristics
  part of:  electronic_computer__computer__computing_machine__computingmachine__computing_device__computingdevice__data_processor__information_processing_system  a machine for performing calculations automatically
     part of:  platform.computer_system  the combination of a particular computer and a particular operating system

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