FIG. 1 is a top, front and right side perspective view of a unit for extending the function of electronic computers showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof, the left side being a mirror image;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top, front and right side perspective view thereof with the apparatus being in a closed position; and,

FIG. 8 is a top, front and right side perspective view thereof showing the use of the apparatus.

The pattern is partially shown in the figures for ease of illustration and it is understood to continue uniformly across each of the indicated surfaces and the broken lines are shown in FIG. 8 for illustrative purposes only and form no part of the claimed design.