It is totally upto your interest. Though it can help you.

Data entry operators take written information from forms, applications, or company files and enter the information into computer system databases, or applications for business use. Some positions deal mostly with typing, such as word processing or computerized customer files. People in these jobs handle letters, documents, and mailing lists. Other positions feature heavy emphasis on numerical data entry, such as accounting, banking, and mortgage, or loan information. Data entry operators work in marketing, accounting, human resources, or healthcare, and many work hours are spent seated at a computer.

You can go ahead with BCA.

Good luck.