here subject is what is data entry in hindi.
A data entry work is similar job to a typist in which data entry staff employed to enter or update data into a computer system database, often from paper documents using a keyboard, optical scanner, or data recorder.The keyboards used can often have specialist keys and multiple colors to help in the task and speed up the work. While requisite skills can vary depending on the nature of the data being entered, few specialized skills are usually required, aside from touch typing proficiency with adequate speed and accuracy. The ability to focus for lengthy periods is necessary to eliminate or at least reduce errors. When dealing with sensitive or private information such as medical, financial or military records, a person's character and discretion becomes very relevant as well. Beyond these traits, no technical knowledge is generally required and these jobs can even be worked from home.
The invention of punch card data processing in the 1890's created a demand for many workers, typically women, to run key-punch machines. It was common practice to ensure accuracy by entering data twice, the second time on a verifier, a separate, keyboard-equipped machine, such the IBM 056. In the 1970's, punch card data entry was gradually replaced by the use of video display terminals.
Reference:-https://en.wikipedia.org/wiki/Data_entry_clerk
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