minicomputer vs word processor

minicomputer

noun
  • A computer smaller than a mainframe, but larger than a microcomputer. 

word processor

noun
  • A device similar to a simple computer, designed for word processing. 

  • Software that provides word processing functions on a computer, typically including typeface selection, line justification and other formatting, pagination, and numerous other features. 

How often have the words minicomputer and word processor occurred in a corpus of books? (source: Google Ngram Viewer )