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    b. How many digits are used in the hexadecimal number system?
                             (i)  8                                            (ii)  10

                            (iii)  12                                          (iv)  16
                         c.  The right-most digit of the number having the lowest weight is called:
                             (i)  MSD                                          (ii)  LSD

                            (iii)  OSD                                         (iv)  None of these

                         d.  The binary equivalent of the decimal number 26 is:
                             (i)  11010                                        (ii)  10100
                            (iii)  11100                                       (iv)  11001

                         e.  Identify the result of adding 1 and 1 in binary.
                             (i)  0 with a carry of 1                          (ii)  1

                            (iii)  10                                          (iv)  11

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

                                                         A, F, 0, 1, Base-10, Byte, 8

                         a.  A group of eight bits is called a __________.

                         b.  The base of the octal number system is __________.

                         c.  The binary number system uses the digits __________ and __________.

                         d.  The decimal number system is also known as the __________ system.

                         e.  The hexadecimal number system includes digits 0 to 9 and letters __________ to __________.

                      3.  Write 'T' for true and 'F' for false.
                         a.  The decimal number system has a base of 16.

                         b. The number 1010 in binary is equal to 10 in decimal.

                         c.  The digit 0 in binary represents the electronic state On.

                         d.  In binary subtraction, if 0 borrows 1, it becomes 10.

                         e.  LSD stands for Least Significant Digit.

                      4.  Answer in one or two words.
                         a.  Identify the smallest piece of data recognised by a computer.                  ____________

                         b.  Determine the number of bits in 1 nibble.                                      ____________

                         c.  Specify the digit represented by the letter 'A' in hexadecimal.                ____________

                         d.  Find the least significant digit in the number 724.                            ____________

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