Editing Cursor keys (section)

==History==
As shown below, a significant number of arrangements have been tried over the decades. Most keyboards today use the inverse-T arrangement, which was popularised by the 1982 [[DEC LK201]] keyboard. While the LK201 is widely considered to have introduced this layout, the inverse-T arrangement long pre-dates the LK201. The ADDS Envoy 620 portable computer, introduced in 1972, used inverse-T cursor keys ten year earlier.<ref name="ADDS-Envoy-620" />

The modern tendency is for the cursor keys to be isolated as their own cluster. In the case of both the LK201 and the Envoy 620, the cursor keys were part of the navigation cluster. The [[IBM Enhanced Keyboard|IBM Model M]] most likely popularised the idea of separating them out from the rest of the navigation keys, and the Model M layout has remained the baseline standard from that day onwards.