SMS vs alert

SMS

verb
  • To send a message on a cell phone. 

noun
  • SMS — Seiner Majestät Schiff – literally, "His Majesty's Ship" in German; 

  • A ship prefix for a ship in the navy of the Empire of Germany (usually for the period leading to WWI and WWI) 

alert

verb
  • To give warning to. 

adj
  • Attentive; awake; on guard. 

noun
  • An alarm. 

  • A state of readiness for potential combat. 

  • A notification of higher importance than an advisory. 

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