Data acquisition device

摘要: A data acquisition device for recording information supplied by an operator in response to a plurality of questions visually presented the predetermined sequence has slide projector and mirror system displaying slides on screen readily observable operator. Each bears image frame having question, multiple-choice answers, identification code photographically recorded thereon. The selects actuates switch corresponding desired answer automatically records punch card at location or column associated with particular being projected. Digital logic is utilized compare synchronize visual display as well provide safety features which render operation relatively foolproof.