Page 28 - Trackpad_ipro 4.1_Class7
P. 28

The rules for binary subtraction:                              Let  us  subtract  the  binary  number
                                                                                 (111)  from (1000) .
                          X           Y                   X – Y                       2              2
                                                                                          1     1
                          0           0                 0 – 0 = 0                                        _____
                                                                                     0  (10)  (10)  (10)       Borrow
                                                        0 – 1 = 1
                          0           1
                                             (borrow 1, so that 10 – 1 = 1)          1    0    0     0
                          1           0                 1 – 0 = 1                –        1    1     1

                          1           1                 1 – 1 = 0                    0    0    0     1


                    Reb           t


                         A number system is a method of counting.
                        The Decimal Number System consists of ten digits from 0 to 9.
                        The Binary Number System consists of two digit, 0 and 1

                        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.



                    OneOne Touch           Learn                                             Section A (Objective)



                  A.  Tick (3) the correct option.

                      1.  In the decimal number system, what is the right-most digit before the fractional point
                         called?
                         a. MSD                                            b. BSD

                         c. LSD                                            d. None of these

                      2.  What is another name for Base 2?

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

                      3.  Which of the following are the two symbols present in the binary number system?

                         a. 1 and 2                                        b. 8 and 9

                         c. 0 and 1                                        d. 5 and 6
                      4.  What is the binary equivalence of (345) ?
                                                                  10
                         a. (101011001)                                    b. (111011101)
                                        2                                                 2
                         c. (110111001)                                    d. (111110001)
                                        2                                                 2









                    26     iPro (Ver. 4.1)-VII
   23   24   25   26   27   28   29   30   31   32   33