Data entry roles mainly revolve around the updating and maintaining of information on computer systems and in archives. Archives and databases are only valuable if they are full of accurate and up to date information. You can find data entry jobs in a variety of sectors, from marketing, banking, medical administration and education. Most of your day would revolve around entering a variety of information into a computerised system. The information is dependant on the type of company you are working for. It could be patient information if you are working for a medical administration, it could be market research survey results if you are working for a research firm and if you are in sales, then it could be sales data and new client information.