The ornamental design for a notebookcomputer, as shown and described.
FIG. 1 is a perspective view of a notebook computer showing our new design, the front, rear views thereof being plain and ornamented;
FIG. 2 is another perspective view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top view thereof, the bottom view thereof being plain and unornamented;
FIG. 6 is an enlarged view of the portion indicated in FIG. 1;
FIG. 7 is an enlarged view of the portion indicated in FIG. 2;
FIG. 8 is an enlarged view of the portion indicated in FIG. 3; and
FIG. 9 is an enlarged view of the portion indicated in FIG. 4; and,
FIG. 10 is an enlarged view of the other portion indicated in FIG. 4.
The dashed broken lines shown in the drawings illustrate portions of the notebook computer that form no part of the claimed design. The dot-dash broken lines define the bounds of the claimed design and form no part thereof.