Snakes on a plane?

Last evening I had a fairly crappy flight  (much delays, and i’m in seat 53A, back left latrine row non-recline). And of course, someone else was also assigned seat 53A.

At any rate, the inflight entertainment system is kind of new looking and, what is that, an Ethernet jack (and PS/2 keyboard jack!). So… If i had brought along my PS/2 model 80 I could have used its keyboard and plugged in some Ethernet to it??? Weird.