(3) Perform serial unsigned multiplication of 1101 x 1011 Show your work (4 Pts) (4). Perform the floating point addition 0.10110 x2 0.11100 x 2'. show the steps including normalization (Note: There are 5 bits In the fraction part) (6 Pts) (5) There are a number of levels in a computer system. list and very briefly define each level, up to the transistor level (use a sentence or so) (10 Pts (6) The ASCIl Character Code of the lower letter case e' Is (65),6 What are the ASCII Character Code of the lower letters a', and the upper letters A J' and k You must show how you arrive to your answer. (8 Pts)