The ornamental design for a computerworkstation, as shown and described.
FIG. 1 is a perspective view of the computer workstation of the present invention;
FIG. 2 is a top view of the computer workstation of the present invention;
FIG. 3 is a front view of the computer workstation of the present invention;
FIG. 4 is a side view of the computer workstation of the present invention, the other side being the same;
FIG. 5 is a perspective view similar to FIG. 1 but showing the fold down tray in the down or open position;
FIG. 6 is a top view of the computer workstation of the present invention showing the fold down tray in the down or open position.
FIG. 7 is a front view of the computer workstation of the present invention showing the fold down tray in the down or open position; and,
FIG. 8 is a side view of the computer workstation of the present invention showing the fold down tray in the down or open position, the other side being the same.
The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.