title: Modems: the gateway to cyberspace.
authors.forename: D I
authors.initials: DI
authors.lastname: Johnson
mesh_terms: D003195:Computer Communication Networks; D006801:Humans; D008838:Microcomputers; D003629:Modems; D009862:Online Systems; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012984:Software