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c.  How does a gesture recognition camera work to control on-screen elements?

                     ______________________________________________________________________________________
                     ______________________________________________________________________________________

                    d.   What do you mean by handheld computer? Write the name of any two handheld
                      computers.

                     ______________________________________________________________________________________

                     ______________________________________________________________________________________
                    e.  Define the following:

                      (i)  Projector
                    ______________________________________________________________________________________

                      (ii)  ATM
                     ______________________________________________________________________________________

                      (iii) Microwave
                     ______________________________________________________________________________________

                      (iv) Laptop
                     ______________________________________________________________________________________

                 5.  Differentiate between the following:

                    Supercomputer                                          Minicomputer
                    __________________________________                          __________________________________
                    __________________________________                          __________________________________


                                                                                                  21 st
                 6.  Application-based questions.                                               Century   #Technology Literacy
                                                                                                  Skills
                    a.   Devansh recently visited a supermarket and purchased a few items. When he went over to the billing
                      counter, he noticed that the person there was using a device to scan the items he had purchased.
                      When the person scanned the item, its price was automatically displayed on the screen. Which
                      device was he using?

                    b.   Shweta was given a project to be made in Word 2016. After completing the project, she
                      had to take its printout and submit it to her teacher. Her teacher asked her to get the
                      best quality printout. Which printer should Shweta use for this purpose?

                 7.  Classify the following devices as Input (I) and Output (O):


                    a.  Keyboard                                       b.  Barcode reader


                    c.  Inkjet printer                                 d.  Projector


                    e.  OCR                                            f.  Monitor






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