random access memory vs storage

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. 

storage

noun
  • Any computer device, including such as a disk, on which data is stored for a longer term than main memory. 

  • The act of storing goods; the state of being stored. 

  • The price charged for storing goods. 

  • An object or place in which something is stored. 

verb
  • To put into storage; to store. 

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