A programmer's calculator that supports 8, 16, 32, and 64-bit signed and unsigned numbers.This calculator is designed for systems programmers and computer scientists. It supports 8, 16, 32, and 64-bit signed and unsigned numbers, and it allows users to cast numbers between any of these modes. Users can also enter numbers as binary, hexadecimal, or decimal inputs, and the calculator display simultaneously shows all three of these bases. This calculator is particularly useful for C programming and computer science education.