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CHAPTER
                 NUMBER SYSTEM                                                                              1






















                                                                            Topics Covered                      95%

                                                                                Data Representation
                              Hello, Shweta! Welcome to class VII.              Number Systems
                                                                                Conversion of Decimal to Binary
                                                                                Conversion of Binary to Decimal
                                                                                Operations on Binary Numbers





                    Thank you, Techie! We missed you during the break. Now we are fresh and
                    eager to begin the new session. What are we going to discuss today?






                                My dear Shweta, throughout your primary classes, your teachers have made you
                                count from 1 to 100, 101 to 200, and so on. This system of representing numbers

                                is  known as  the  decimal  number  system.  However, this  is  not  the  only  system
                                available to us. There are many more.








                 That does sound interesting, Techie, but we are confused. Please tell me in detail.






                                Maintain  that curiosity,  kid!  You’ll find out  everything  in this chapter. Let’s get
                                started!







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