If you play this video, a connection to servers of YouTube will be established. YouTube then will be able to see, which web page you are visiting. If you are logged in to your YouTube-account, YouTube can also assign your personal surfing.
Der Leiter des Stuttgarter Computermuseums, Klemens Krause, beantwortet drei Fragen zur Ausstellung. https://www.f05.uni-stuttgart.de/informatik/fachbereich/computermuseum/