Don't lose heart, I'm not going to get too technical. I just want to muse on the etymology of technical jargon, and perhaps to make a little fun of it.
In locating the spare part that I need, I used the power of Ebay, naturally, and found the component at a very reasonable price. Finding it was not difficult, but the description is "ASUS . . . Genuine DC Power Jack Socket Connector." So why does this seem strange?
To me, the jack is the plug that plugs into this socket connector, and you could read the description that way. On the other hand, thinking of the many variants on the nursery rhyme about Jack and Jill you might think of it in a different way.
If the plug is a Jack, does that make the socket a Jill?