Provided is a computing device according to an embodiment of the present disclosure including an integrated register file configured to store a first variable type and a first variable value of a first variable, and a second variable type and a second variable value of a second variable, a calculator configured to perform a first calculation on the first and second variables according to the first and second variable types, and output a first calculation result, and a type rule table comprising a plurality of entries and, when there is an entry corresponding to a type of the first calculation, and the first and second variable types, configured to output a type of the first calculation result.