Jesper de Jong wrote:It is obviously sexist because the joke tries to confirm the wrong stereotype that women don't know anything about technology. Likewise for Himanshu Gupta's joke, which does the same kind of thing.
Since there are no such stereotypes about men, it wouldn't be sexist if it would be about a man.
Ah, so is the sexism in the creator of the joke, or in the reader?
If we read a joke about someone who foolishly thinks the CD tray is a drink holder, do we automatically assume sexism if the subject is female? Isn't that a form of sexism in itself? Is it that on some subconscious level we feel we must defend women by feigning outrage at sexism in a joke like this
only if the subject is a woman? You said, it wouldn't be sexist if it were about a man, but is that only because people may subconsciously assume that a man would never be so foolish when operating a computer?
(I ask in order to make a philosophical point, not to troll

I like to examine these things from alternative points of view. It helps promote out-of-the-box thinking.)