Internet vs cyberspace

Internet

noun

  • specific internet consisting of a global network of computers 

name

  • The specific internet consisting of a global network of computers that communicate using Internet Protocol (IP) and that use Border Gateway Protocol (BGP) to identify the best paths to route those communications. 

cyberspace

noun

  • A three-dimensional representation of virtual space in a computer network. 

  • A world of information accessed through the Internet. 

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