coffer vs random access memory

coffer

noun
  • A supply or store of money, often belonging to an organization. 

  • An ornamental sunken panel in a ceiling or dome. 

  • A trench dug in the bottom of a dry moat, and extending across it, to enable the besieged to defend it with raking fire. 

  • A strong chest or box used for keeping money or valuables safe. 

  • A cofferdam. 

verb
  • To put money or valuables in a coffer 

  • To decorate something, especially a ceiling, with coffers. 

random access memory

noun
  • Computer memory, usually volatile, that stores program and data values during operation and in which each word of memory may be directly (randomly) accessed. 

How often have the words coffer and random access memory occurred in a corpus of books? (source: Google Ngram Viewer )