Computer Science 101
                               Quiz 4      Name ______________________


1. a.  Write the value of the  binary number 10100011 in hexadecimal





   b. Write the hexadecimal number 3B in binary





2. What is the binary two's complement of the value

    10001000










3. The sum of a number x and its two's complement is

   a. 0                        b. 1

   c. 2x                       d. -1



4. a. The binary encoding 0100 0010 is the ascii encoding of what letter.
      (Be sure that your letter clearly shows the correct (upper/lower)
       case)




   b. What is the binary encoding of the case coverted encoding of the
      same letter