operating system vs spreadsheet

operating system

noun
  • Software for controlling the allocation and use of various hardware resources (memory, CPU time, disk space, input and output devices) to tasks and remote terminals. 

spreadsheet

noun
  • A computer application for organization, analysis, and storage of data in tabular form. 

  • A document created with such an application. 

verb
  • To model or compute by means of a spreadsheet. 

How often have the words operating system and spreadsheet occurred in a corpus of books? (source: Google Ngram Viewer )