US D528543 S1
FIG. 1 is a perspective view of an arithmetic and control unit showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
Portions of FIGS. 1-6 that are shown as broken lines are for illustrative purpose only and form no part of the claimed design.