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3.  Which of the following is not a Computer Numeral System?

                        a. Octal number system                          b. Hexadecimal number system

                        c. Decimal number system                        d. Rational number system

                     4.  The base of a hexadecimal number is represented by ................................ .
                        a. A16                                          b. 16


                        c. 16A                                          d. 15

                     5.  The binary subtraction  1 – 1 = ................................ .
                        a. 1                                            b. -1

                        c. 9                                            d. 0


                 B.  Fill in the blanks using the words given below.

                                             Hints: 14, Octal, ,8 Binary number system, 1010

                     1.  The binary equivalent of 10 is ................................ .

                     2.  ................................ makes long binary numbers shorter and simpler.

                     3.  In a hexadecimal number system, E represents the digit ................................ .
                     4.  Base 2 is another name for the ................................ .

                     5.  The most significant digit in the number 846 is ................................ .

                 C.  Write ‘T’ for true and ‘F’ for false.

                     1.  A decimal number system is made up of 10 digits from 1 to 10.                ................................

                     2.  LSD stands for Least Significant Digit.                                      ................................

                     3.  There are 8 symbols in the binary number system.                             ................................

                     4.  Binary number system has made the representation of large values easy.       ................................
                     5.  (1429)  represents Octal number system.                                      ................................
                              8

                                                       Section B (Subjective)
                 A.  Short answer type questions:

                     1.  Why do programmers prefer hexadecimal numbers?
                     2.  Write down the difference between data and information.
                     3.  What do you understand by Number system?

                 B.  Long answer type questions:
                     1.  Explain hexadecimal number system with example.

                     2.  Convert (1001)  to its decimal equivalent by illustrating position and weight.
                                      2
                     3.  Tabulate the rules of binary subtraction.



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                                                                                               Number System
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