The ornamental design for a computerworkstation, as shown and described.
FIG. 1 is a top, front, and left side isometric view of a computer workstation showing our new design;
FIG. 2 is a top, rear and right side isometric view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left elevational view thereof;
FIG. 6 is a right elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is the same view as FIG. 1 with a handle partially removed to better illustrate the shape thereof as well as a portion of the design otherwise obscured by the handle; and,
FIG. 10 is the same view as FIG. 2 with another handle partially removed to better illustrate the shape thereof as well as a portion of the design otherwise obscured by the handle.
The broken lines shown in the drawing views indicate areas on the article that form no part of the claimed design of the subject embodiment.