customer service vs server

customer service

noun
  • A department that provides services to existing customers. 

  • The act of providing services to customers before, during and after a purchase. 

server

noun
  • A program that provides services to other programs or devices, either in the same computer or over a computer network. 

  • A tray for dishes. 

  • A computer dedicated to running such programs. 

  • The player who serves the ball. 

  • A spoon for serving food. 

  • A waitress or waiter. 

  • A priest's attendant at the celebration of the Eucharist. 

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