a) Represent the numbers \\( x=-23 \\) in this system. ( 4 points) b) Represent the number 3 and computer \\( 3^{8} \\). ( 6 points) c) Compare the number range with that of a 16-bit 2's complement system. (4 points) d) How many bits are needed for this system? Can you optimize this system with the same range for the number of bits? ( 4 points)