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For example, let us add the binary numbers (101111)  and (10111) .
                                                                        2             2
                                                                       _____
                                                    1    1  1  1  1          Carry bits
                                                    1    0  1  1  1  1

                                                 +       1  0  1  1  1
                                                 1  0    0  0  1  1  0


                 Look at the given examples to better understand better.

                 Example 1:  Add the binary numbers (10110)           Example 2: Add the binary numbers (11111)
                                                                2                                                  2
                              and (01101) .                         and (11111) .
                                          2                                      2
                                   _____                                                           _____
                            1  1        Carry bits                                1   1    1   1         Carry bits
                            1   0    1   1   0                                    1   1    1   1   1

                        +   0   1    1   0   1                                +   1   1    1   1   1
                        1   0   0    0   1   1                                1   1   1    1   1   0

                 Example 3:  Add the binary numbers (11011)  and (10110)
                                                                2             2
                                                                 _____
                                                      1  1     1       Carry bits

                                                      1   1    0   1   1
                                                  +   1   0    1   1   0
                                                  1   1   0    0   0   1

                        Restart


                       A number system is simply a manner of counting.
                      The decimal number system consists of ten digits from 0 to 9.
                      The binary number system consists of two digits 0s and 1s.

                      The octal number system is used as a shorthand representation of long binary numbers.
                      The hexadecimal number system consists of 16 digits from 0 to 9 and A to F.



                                                          Checkpoint


                 A.   Tick ( ) the correct option.
                      1.  In the binary number system, right-most digit before the fractional point is called .........................

                           a.  MSD                                      c.  LSD
                           b.  BSD                                      d.  None of these

                      2.  Base 2 is another name for the .........................

                           a.   Binary number system                    c.  Hexadecimal number system
                           b.   Decimal number system                   d.  Octal number system



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