The ornamental design for a desktopcomputer, as shown and described.
FIG. 1 depicts a left front perspective of a desktop computer;
FIG. 2 depicts a left rear perspective of the desktop computer;
FIG. 3 depicts a front elevation of the desktop computer;
FIG. 4 depicts a rear elevation of the desktop computer;
FIG. 5 depicts a right elevation view of the desktop computer;
FIG. 6 depicts a left elevation view of the desktop computer; and,
FIG. 7 depicts a top plan view of the desktop computer.
The bottom of the desktop computer, not shown, forms no part of the claimed design.
The broken lines showing of the ventilation slots disposed on top surface of the article are for the purpose of illustrating the article and form no part of the claimed design.
The broken lines showing of the compact disc and DVD loading slots disposed on front surface of the article are for the purpose of illustrating the article and form no part of the claimed design.