Page 16 - Trackpad_V5_Book 7
P. 16

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

                                          OFF, binary, base-2 system, 12, bit

               a.  A __________ is a smallest unit of data represented in a computer.

               b.  The digit 0(zero) represents the electronic state __________.
               c.  The binary number system is also known as __________.
               d.  In the hexadecimal number system, the letter C = __________.
               e.  The computer system understands __________ numbers.

            3.  Answer in one or two words.
               a.  What is a group of eight bits called?                                          ____________
               b.  What is the decimal number system also known as?                               ____________
               c.  Which number system uses symbols, 0 to 9 and A to F?                           ____________

            4.  Think and answer.
               a.  What is an octal number system?

                _______________________________________________________________________________
               b.  What do you understand by the number system? Give an example.

                _______________________________________________________________________________
               c.  What do you mean by base in a number system?

                _______________________________________________________________________________
               d.  How do you represent data on a computer?

                _______________________________________________________________________________
                _______________________________________________________________________________

               e.  How can we convert a binary number into a decimal number? Give an example.
                _______________________________________________________________________________

                _______________________________________________________________________________
               f.  Write the rules to subtract two binary numbers.

                _______________________________________________________________________________
                _______________________________________________________________________________

            5.  Solve the following.
               a.  Convert these into the given number system and write their results.
                   (i)  (101)  to decimal number system       ____________
                           2
                  (ii)   (250)  to binary number system       ____________
                            10
                  (iii)   101011  to decimal number system    ____________
                             2
                  (iv)  10111011  to decimal number system    ____________
                              2
               b.  Perform the following operations on binary numbers.
                   (i)   Subtract (1101)  from (100110) 2     ____________
                                     2
                  (ii)   Add (1000)  and (101)                ____________
                                  2         2

             14   Pro (Ver. 5.0)-VII
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