[OJFord]

Just to be clear on the distinction, are we terming 'split segment' the keyboards in two halves that have (roughly) half the usual keys on each device, and saying purist's 'split keyboard' is.. two 'normal' keyboards?

Nothing is 'split' in the latter though? I've never thought 'split keyboard' a misnomer in referring to two pieces that look like a keyboard sawn (often carefully around staggered keycaps) in half, i.e. split?

[palunon]

No. It's hard to explain, but split segment looks like this: https://imgur.com/a/kjWmciy (so, one physical keyboard, just with a very different layout)

Split keyboards are usually 2 separate keyboards with half the key each.

[OJFord]

Oh I see, thanks. I have seen those, just didn't think of it - they seem strictly worse than two separate halves to me, the main thing that appeals to me (I don't have one) is positioning either have however, at whatever angle, and differently to the other, to suit me and how I happen to be sitting at the time. Split segment seems to make a big assumption about what people find uncomfortable (narrow/er than shoulders) and offer a different fixed solution.