1. Perform the following number system conversions: (a) 1101011, = ?10 (b) 3458 = ? (c) AB3D16 = ?10 (d) 10710 = ? (e) AB3D16 = ? 2. Give the 8-bit sign/magnitude, one's-complement, and two's-complement represen- tations for each of the following decimal numbers: 18 115 79 - 49 129 -100. 3. Convert the following 2's complement binary numbers to decimal. (a) 0110 - (b) 1101 = (e) 1101101100011100 = 4. Perform the following operations using 2's complement 8-bits binary numbers then verify (if possible) the operation using decimal equivalents (a) 00110011 - 01000000 = (b) 10111001 +11010110 = (e) 1101011010101001 5. Write the following in an exponential (scientific normalized) notation, using a 16-bit format, with a 10-bit signed mantissa and a 6-bit signed exponent: (a) 1001.011, (b) -20.7510 (e) 0.20312510 (d) -1/32.0