FYI, for me, and others like me (yes, there are a few), the World Wide Web isn't "the internet". It's now the major portion of it, but there have been, and still are, other "protocols" (if I'm using the word somewhat correctly) and other ways of being online and using that big ol' Information Superhighway (remember that?).
My start was "America Online" in 1986, when that was a Commodore Computer-only service. My first modem for my Commodore 128 got me on there and on a few local "bulletin boards" for computer user groups, weather, and other informational stuff. "America Online" became AOL, and there was Prodigy, and Compuserve, and being able to log on to libraries and other institutions. But these still weren't the Web. When the guy whose name I forget at the moment actually created the Web interface, that's what eventually became adopted by one and all. And that was concurrent with the government/military/university internet becoming opened up to the general public. But to this day, there are other things out there that ride along on the internet. One example, I'm still a member of a BBS in New York City, a text-based system of conversational activity that runs on UNIX and has nothing to do with the Web at all. But yes, most people only know the Web, and that therefore is "the Internet".