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B.  Fill in the blanks:

                  1.  The value of any digit in a number can be determined by a ………………… , its position in the number, and the …………………  of the
                     number system.
                  2.  The base of a binary number system is ………………… .
                  3.  Decimal number system uses digits from …………………  to ………………… .
                  4.  Digits 10 to 15 in the hexadecimal number system are represented by …………………  to ………………… .

                  5.  To convert a decimal number to binary we have to …………………  the decimal number by ………………… .
                  6.  One’s complement of 101101 is …………………  and two’s complement is ………………… .
                  7.  Seven’s complement of 6217 is …………………  and its Eight’s complement is ………………… .
                  8.  …………………  developed the concept of the Binary Number system.
                       0
                  9.  16  is equal to ………………… .
                 10.  Binary equivalent of hexadecimal digit E is ………………… .
              C.  Answer the following questions:
                  1.  Convert the following decimal numbers to binary.
                     a.  (763)                                         b.  (2154)
                           10                                               10
                     c.  (678.50)                                   d.  (2351.75)
                                                                              10
                             10
                     e.  (436.35)
                             10
                  2.  Convert the following decimal numbers to octal.
                     a.  (299)                                       b.  (3846)
                           10                                               10
                     c.  (178.48)                                   d.  (4367.5)
                             10
                                                                             10
                     e.  (897.75)
                             10
                  3.  Convert the following decimal numbers to hexadecimal.
                     a.  (488)                                       b.  (3926)
                                                                            10
                           10
                     c.  (978.5)                                    d.  (6363.25)
                                                                              10
                            10
                     e.  (854.4)
                            10
                  4.  Convert the following binary numbers to decimal.
                     a.  (100110)                                   b.  (11101111)
                                                                               2
                              2
                     c.  (101010.11)                                d.  (1111010.101)
                                                                                  2
                                2
                     e.  (11001101010.01)
                                     2
                  5.  Convert the following octal numbers to decimal.
                     a.  (2571)                                      b.  (3773)
                                                                            8
                            8
                     c.  (1655.25)                                  d.  (2511.4)
                                                                             8
                              8
                     e.  (4471.2)
                             8
                  6.  Convert the following hexadecimal numbers to decimal.
                     a.  (2DC1)                                      b.  (EC98)
                            16
                                                                            16
                     c.  (5E67.8)                                   d.  (E22B.C)
                             16
                                                                             16
                     e.  (4F71.2)
                             16
                  7.  Convert the following binary numbers to octal.
                     a.  (10011110)                                 b.  (111011101)
                                2
                                                                                2
                     c.  (1001010.11)                               d.  (1110010.001)
                                 2
                                                                                  2
                     e.  (1100110100.1) 2
                  8.  Convert the following binary numbers to hexadecimal.
                     a.  (100111100)                                b.  (11101110011)
                                                                                  2
                                 2
                     c.  (10010101.101)                             d.  (11110010.001)
                                                                                   2
                                   2
                     e.  (10110100.1) 2
                4444  Touchpad Computer Science-XI
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