Iziphakeli zocingo ezizenzakalelayo zisetshenziselwa ukuphakela izintambo ngokuqhubekayo nangokuqhubekayo. Ziyiziphakeli zocingo ezizenzakalelayo ezingaphakela izintambo ngokuqhubekayo nangokuqhubekayo ngokuya ngamapharamitha asethiwe ngaphansi kokulawulwa kwe-microcomputer.