
Originally Posted by
cmwinters
Jo said in an interview that electronic devices won't work around Hogwarts because of the interference. I don't think one would work in Diagon Alley, the Ministry, St Mungo's or Hogsmeade, either, for similar reasons.
Individual homes, possibly, but not one like the Burrow, which is packed full of a bunch of magical people at once. And individual could probably have an operating computer at their flat (like, for example, Hermione), but I honestly think that after Ron & Harry showed up for the day, it'd start glitching out.