software vs vaporware

software

noun
  • Hyponyms: application software, data-oriented software, kitchen table software, on-premises software, malware, schlockware, shareware, shovelware, spyware, system software 

  • Encoded computer instructions, usually modifiable (unless stored in some form of unalterable memory such as ROM). 

  • The human beings involved in warfare, as opposed to hardware such as weapons and vehicles. 

vaporware

noun
  • An advertised product, often computer software, whose launch has not happened yet and might not ever happen. 

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