The linked analysis posits that Ahmed's clock started out as another clock, rather than a box of parts, and Ahmed can be said to have repackaged rather than "invented" a wholly new clock, but acknowledges that "none of us were there and knows what happened."
Yes, because the issue here is who invented the clock...
Doing the same for my parents, too. Covers web surfing, skype and youtube videos, which is all of their needs.
Does not need to be a tablet, either. There are a couple of 21+" android all-in-one out there.