Portion of a computer input device

FIG. 1 is a top plan view of a portion of a computer input device showing our new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is another perspective view thereof;

FIG. 4 is a front elevational view thereof.

FIG. 5 is a side elevational view of one side thereof;

FIG. 6 is a side elevational view of the other side thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken line immediately adjacent to the shaded area in FIGS. 2-7 represents an unclaimed boundary of the design. The broken line showing of the ovoid shape in the rear and the remainder of the computer input device is for illustrative purposes only and form no part of the claimed design. The unshaded bottom region forms no part of the claimed design.