The ornamental design for a computercase, as shown and described.
FIG. 1 is a front perspective view of a computer case showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a rear perspective view thereof; and,
FIG. 9 is another left side elevational view, showing the computer case in use with environment.
The broken lines within the computer case in FIG. 9 illustrate environment that forms no part of the claim design. All other broken lines illustrate portions of the computer case that form no part of the claimed design.