1. Convert the following UNSIGNED BINARY numbers to HEXADECIMAL and DECIMAL: a 10101011 b. 11111110 c. 10010100 2. Now assume that the above numbers are SIGNED numbers and do the equivalent conversions using 2's complement 3. Convert the following DECIMAL numbers to BINARY and HEXADECIMAL. Consider these to all be 8 bit signed numbers: a. 85 b. -125 c. -42 d. -64 4. Convert the following DECIMAL fractions to BINARY fractions: a. 15.5 b. 16.75 c. 3.2 5. Perform the following operations in BINARY: ! 1 0 1 0 a. b. 1 0 0 0 + 1 1 0 0 1 0 0 1 0 0 1 0 1 + 1 1 1 1 6. Perform the following operations in HEXADECIMAL: 4 a. A F E F 0 1 b. 2 0 0 4 + 1 4 C. 1 C9 2 C +