cold boot vs relaunch

cold boot

noun
  • The act of rebooting a computer by turning it off and on. 

verb
  • To reboot a computer by turning it off and on. 

relaunch

noun
  • The act or fact of launching again. 

verb
  • To launch again. 

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