I've been assuming that the 5160 *and* 5150 came with the 83-key (forgive me if it's 84, I constantly get that mixed up) XT "IBM Personal Computer" keyboard - until now. I learned that the latest 5160s ended up with the enhanced keyboard like the XT-286 shipped with. I looked at my AT keyboard and it's labeled "IBM Personal Computer AT". I started to wonder if the exact keyboard that shipped with the earlier 5160s should say "IBM Personal Computer XT" like the badge on the front of the machine, or if the 5160 and 5150 did indeed share a keyboard model and I've got the correct one matched up to my 5160 already.