I guess I'm old enough now where I can spout facts like "Well screensavers are called that because back in the day we used CRTs and if you left the same image up, it would literally burn into the screen" and either blow the minds of or supremely bore the youth
@cwebber back in '06 I was at a big LAN. At one point they brought up some volunteers to a stage and let them compete in a quiz-like competition. One of the challenges was "imitate the sound a modem makes when dialing up."
They all stared at each other, completely silent. None of them had heard a dial-up modem or even knew that modems at one point had made sounds.