numer al system counters we're used to counting in the decimal numeral systemwhich uses digits through this system likely developed because humans counted on their fingersand most people have fingers but other number systems exist computers make use of binarya numeral system with only two digits and programmers also sometimes use hexadecimalwhich is base- numeral system that uses the digits to but also extends into the letters to we can represent any number in any numeral systemand this program displays range of numbers in decimalbinaryand hexadecimal