readout vs visual display unit

readout

noun
  • A display, particularly one that presents numerical data. 

  • An account of the topics discussed in a meeting, especially in diplomatic or political contexts. 

visual display unit

noun
  • A computer display; a screen or monitor that can be connected to a computer. 

How often have the words readout and visual display unit occurred in a corpus of books? (source: Google Ngram Viewer )