The present invention relates to an acrylic impact modifier having a multilayered structure, which offers both superior impact resistance and coloring characteristics to engineering plastics, such as polycarbonate and a polycarbonatepolybutylene terephthalate alloy resin, or to a polyvinyl chloride resin. The assembly includes a platform and a plurality of swivel joints and pipe sections. Within the unified system, parallel processing computer systems, each having an input controlling a plurality of computers, generate and output user information at receiver stations.