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    b.  Of which digits is Octal Number System made up?
                             (i)  0 to 7                                       (ii)   0 to 9

                            (iii)  0 and 1                                     (iv)   Both (i) & (ii)
                         c.  Which of the following is also known as the base-16 system?
                             (i)  Octal Number System                          (ii)   Decimal Number System

                            (iii)  Hexadecimal Number System                   (iv)   Binary Number System

                         d.  Which of the following digits represents the ON state in the number system?
                             (i)  0                                            (ii)  1
                            (iii)  -1                                          (iv)   None of these

                         e.  The right-most digit of the number having the lowest weight is called __________ .
                             (i)  MSD                                          (ii)   LSD

                            (iii)  OSD                                         (iv)  HSD
                         f.   What is the other name for base?
                             (i)  Radix                                        (ii)  Foundation

                            (iii)  Radian                                      (iv)   Both (i) & (ii)

                      2.  Fill in the blanks using the words from the help box.

                                                     OFF, Binary, Base-2 system, 12, Bit

                         a.  A __________ is a smallest unit of data represented in a computer.

                         b.  The digit 0 (Zero) represents the electronic state __________.

                         c.  The binary number system is also known as __________.
                         d.  In the hexadecimal number system, the letter C = __________.

                         e.  The computer system understands __________ numbers.

                      3.  Answer in one or two words.
                         a.  What is a group of eight bits called?                                          ____________

                         b.  What is the decimal number system also known as?                               ____________
                         c.  Specify the digit represented by the letter 'A' in hexadecimal.                ____________

                         d.  Which number system uses symbols, 0 to 9 and A to F?                           ____________
                      4.  Think and answer.

                         a.  What is an octal number system?
                            _____________________________________________________________________________________
                            _____________________________________________________________________________________

                         b.  What do you understand by the number system? Give an example.
                            ______________________________________________________________________________________

                            _____________________________________________________________________________________

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