DRAM vs airdrop

DRAM

noun
  • Dynamic random access memory. 

airdrop

noun
  • The act of delivering goods, equipment, or personnel by dropping them from an aircraft in flight. 

  • The distribution of free tokens to help bootstrap a new cryptocurrency. 

verb
  • To delivery goods, equipment, or personnel by dropping them from an aircraft in flight. 

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