PUNCH CARD CONTROLLED ACCOUNTING MACHINE

摘要

An accounting machine in which a perforated control card insertable into the machine programs the control of a plurality of feeding and printing mechanisms by predetermined control keys on the keyboard. Control circuits are utilized which include differentially settable switch means, sensing means for sensing perforations in the control card and a plurality of "AND" gates for selectively operating electromagnetic means which control the feeding mechanism and a plurality of printing mechanisms.