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. Proper ergonomics at the workstation is a common topic considered. The Data Entry Clerk may also use a mouse, and a manually-fed scanner may be involved. Speed and accuracy, not necessarily in that order, are the key measures of the job; it is possible to do this job from home.