[12] The invention of punched card data processing in the 1890s created a demand for many workers, typically women, to run keypunch machines.
In a cash office, a data entry clerk might be required to type expenses into a database using numerical codes.
The accuracy of OCR varies widely based upon the quality of the original document as well as the scanned image; hence the ongoing need for data entry clerks.
The accuracy of personal records, as well as billing or financial information, is usually very important to the general public as well as the healthcare provider.
[14][13] The job is usually low-skilled, so veteran staff are often employed on a temporary basis after a large survey or census has been completed.
However, most companies handling large amounts of data on a regular basis will spread the contracts and workload across the year and will hire part-time.
[18] As of 2018[update], The New York Times was still carrying ads for the job title Data Entry Clerk.