BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
A general architecture that implements the various feature of the invention will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate embodiments of the invention and not to limit the scope of the invention.
FIG. 1 is an exemplary perspective view of a portable computer according to a first embodiment of the invention;
FIG. 2 is an exemplary sectional view of protrusions according to the first embodiment;
FIG. 3 is an exemplary sectional view of the protrusions taken along line F3-F3 of FIG. 2;
FIG. 4 is an exemplary sectional view of a portable computer according to a second embodiment of the invention;
FIG. 5 is an exemplary sectional view of a portable computer according to a third embodiment of the invention;
FIG. 6 is an exemplary sectional view of protrusions according to the third embodiment;
FIG. 7 is an exemplary sectional view of the protrusions taken along line F7-F7 of FIG. 6;
FIG. 8 is an exemplary sectional view of a portable computer according to a fourth embodiment of the invention;
FIG. 9 is an exemplary sectional view of the protrusions taken along line F9-F9 of FIG. 8; and
FIG. 10 is an exemplary sectional view of a portable computer according to a fifth embodiment of the invention.