Data Entry: A data entry clerk, similar to a typist, is a member of staff employed to enter or update data into a computer system database, often from paper documents using a keyboard, optical scanner, or data recorder. Recaptcha: reCAPTCHA is a CAPTCHA-like system designed to establish that a computer user is human (normally in order to protect websites from bots) and, at the same time, assist in the digitization of books.