Computer Science For class 10

Group “A” 1.       Answer the following questions:                                           (5 * 2=10) a)       Write any two example of data communication. b)       What do you mean by web browser? c)       Write any four advantages of multimedia. d)      Mention any four symptoms of computer virus. e)       What is computer security? 2.       a) Convert as instructed:                                                       [2 * 1=2 ] i.(AC3)­ 16 into Decimal            ii. (110010) 2 into Octal b) Perform the binary Calculation: [2 1=2 ] i.11 11-101                             ii.Divide 1010 by 10 3.       Match the following: Group'A'                                              Group'B' a)       satellite                                  i) Multimedia b)       HTTP                                    ii) Protocol c)       Online business                     iii) Unguided media d)      Fiber optics                           iv) E-co