Data Entry Operator (DEO) Question:
Download Questions PDF

What punch cards?


For operating fairground organs and related instruments. It was used through the 20th century in unit record machines for input, processing, and data storage. Early digital computers used punched cards as the primary medium for input of both computer programs and data, with offline data entry on key punch machines. Some voting machines use punched cards.

Download Data Entry Operator Interview Questions And Answers PDF

Previous QuestionNext Question
WHAT IS DATA WAREHOUSING ? and WHAT IS DATA MINING?Which types of work available in ITES / BPO industry for a BCA graduate like me?