Abstract: A programmable matrix assembly which includes two flat cables having their longitudinal axis perpendicular to each other. First and second cover plates, one of which has two sets of holes, which are spaced in staggered relationship. Conducting connecting pins insertable into the holes and then through the insulation and the conductors for electrically interconnecting selected conductors of the flat cables.

Abstract: A punched card reader includes a base member for slidably receiving a punched data card having a plurality of columns and rows. Along one edge of the base member is a row of apertures corresponding in number and spacing to the rows on the data card. The base member further includes a centrally located strobe aperture. A strobe generator is slidably mounted on one face of the base member. The strobe generator includes a central column of slots disposed perpendicular to the row of apertures on the base member and disposed so as to pass over the strobe aperture as the inserted data card displaces the strobe generator away from the row of apertures on the base member. The slots correspond in number and in spacing to the columns on the data card. Adjacent to one face of the base member is a plurality of light sources aligned with the row of apertures and centrally located strobe aperture.