Data Entry Functions. In essence, data entry means to operate equipment (often a keyboard) to input alphabetic, numeric, or symbolic data into a company's system. The data entry operator may be required to verify or edit data as it is entered, or another person might do this work. I am a data entry operator.I have 1 year experience in digitizeindia.in . A data entry clerk is a member of staff employed to enter or update data into a computer system. Data is often entered into a computer from paper documents using a keyboard. The keyboards used can often have special keys and multiple colors to help in the task and speed up the work.