Forms :: Do Combobox And Radio Button Store Only Numeric Value

I would like to store the string in my table when I choose a string from a combobox or radio button in the form.For example, if I choose 'Business' ( from major field in my department table ) in my combobox, I expect there is a 'Business' in my major field in my department table. And if I click radio button labled 'A' (position field), I expect there will be 'A' in the position field in my table. However, those only store numeric values, for example '3' for 'Business' and '1' for 'A' in the table. How can I store the 'real value' in my table instead of number when I choose them.