Patent ID: 8100594

Claim:
A data input arrangement of a computing device, comprising: a first row of input keys defining a first wave shape extending across a first typing surface thereof, a shape of a first input key in the first row of input keys being convex, a shape of an adjacent second input key in the first row of input keys being concave, and a shape of an adjacent third input key in the first row of input keys being convex; and a second row of input keys defining a second wave shape extending across a second typing surface thereof, a shape of a first input key in the second row of input keys being convex, a shape of an adjacent second input key in the second row of input keys being concave, and a shape of an adjacent third input key in the first row of input keys being convex, the first and second rows being contiguous with one another so that the first and second wave shapes create a non-linear surface extending across the data input arrangement, the non-linear surface enabling users to tactilely locate individual keys of the first and second rows, wherein a surface underlying the first and second rows is a substantially linear surface.