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                      «   A number system is a way of representing numbers using specific digits or symbols.
                      «   The decimal number system is a base-10 system that uses the digits 0–9.
                      «   The binary number system is a base-2 system that uses only two digits: 0 and 1.

                      «   The octal number system is a base-8 system that uses the digits 0–7.
                      «   The  hexadecimal number system  is a base-16 system  that  uses the digits  0–9 and letters  A–F
                         (for 10–15).
                      «   Conversion of number systems means changing a number from one base to another, such as decimal,
                         binary, octal or hexadecimal.
                      «   Binary arithmetic operations are mathematical calculations performed using binary numbers, which
                         consist of only 0s and 1s.

                                                  LEARNING LOGS

                      A.  Tick ( ) the correct option.
                         1.  Choose the digits used in the binary number system.

                                    (i)  0 and 1                              (ii)  1 to 9

                                   (iii)  0 to 7                              (iv)  0 to 15
                         2.  Select the binary multiplication result of 101 × 110.

                                    (i)  100111                               (ii)  11110

                                   (iii)  11011                               (iv)  10101
                         3.  Mark the value of (1111)  in the decimal system.
                                                   2
                                    (i)  18                                   (ii)  20

                                   (iii)  15                                  (iv)  28
                         4.  Which number system uses the digits 0 to 7 only?

                                    (i)  Decimal                              (ii)  Binary

                                   (iii)  Octal                               (iv)  Hexadecimal
                         5.  Mark the truth table result of 1 + 1 in binary addition.

                                    (i)  Sum = 1, Carry = 1                   (ii)  Sum = 0, Carry = 1

                                   (iii)  Sum = 1, Carry = 0                  (iv)  Sum = 0, Carry = 0

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                            CodePilot (V5.0)-VII

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