FIG. 1 is a front elevational view of a controller for arithmetic and control unit showing my new design;

FIG. 2 is a right elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top, right perspective view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a bottom, left perspective view thereof.

Portions shown as broken lines are for illustrative purpose only and form no part of the claimed design.