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D.  Short answer type questions.

                    1.  What is an octal number system?

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                    2.  How many bits are there in 1 byte?

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                    3.  What do you mean by base in a number system?

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                 E.  Long answer type questions.

                    1.  What is number system? Explain.

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                    2.  What are the rules  to convert a decimal number into a binary number?
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                    3.  Write the rules to subtract two binary numbers.

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                 F.  Solve the crossword by filling it with equivalent decimal numbers or binary numbers.

                    Down
                                                                                        1
                      1.  (10101)
                               2                                                  3
                      3.  (1111011)                              2                1     1
                                  2
                      5.  (361)                                                         5
                             10
                      7.  (6)                                                  4  3     1
                           10
                                                                                                         7
                    Across
                                                                                     6  1
                      2.  (101)
                             10                                                      8  1                1
                      4.  (100101101)
                                    2
                      6.  (1100)                                                  9
                              2
                      8.  (165)
                             10
                                                                                 10     0
                      9.  (1010001)
                                  2
                    10.  (1101010)
                                  2

                                                                                            Number System         15
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