What are the templates on a computer?
Are you talking about templates in a computer or templates in a computer program? A template in Word, for example, is nothing more than a basic form. So if you open a business letter template, it will ask you for some information to fill in and then you type your letter in the body. It is already setup in the proper format for a business letter. A template for an invoice will have all the columns, headings etc. you need for a basic invoice. Please let me know if this answers your question.