Portable computer

FIG. 1 is a front, top perspective view of a portable computer showing our new design;

FIG. 2 is front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a bottom front perspective view thereof.

The broken lines show portions of the portable computer that form no part of the claimed design.