The ornamental design for a computingdevice, as shown and described.
FIG. 1 is a front, left perspective view of a computing device according to a first embodiment.
FIG. 2 is a right, rear perspective view thereof.
FIG. 3 is a top view thereof.
FIG. 4 is a bottom view thereof.
FIG. 5 is a left side view thereof.
FIG. 6 is a right side view thereof.
FIG. 7 is a front view thereof; and,
FIG. 8 is a rear view thereof.
Within the drawings, the broken lines show unclaimed portions of the computing device, including a speaker enclosure, cameras, and other ports and form no part of the claimed design.