A keyboard that separates the keys into two halves shaped like a wide "V." Some keyboards have a fixed layout, while others are movable. To the touch typist, the layout feels odd at first, but it puts less stress on the hands and wrist and winds up being comfortable for most people.
Movable Layout
The ergonomic keyboard on this Samsung laptop of the mid-1990s was a rarity. It provided a range of positions from straight rows to the V-shape in this picture. Oddly, this extremely comfortable keyboard was later discontinued.