Page 19 - TP_Prime_v2.2_Class_3
P. 19

Plotter


                 A plotter is used to print big sketches, diagrams and maps on
                 long sheets of paper. They are used by engineers, architects,
                 scientists and designers.



                                         Projector


                                       A projector projects or displays data of computer screen on a                        HARDWARE AND SOFTWARE
                                       large screen or surface for audience.




                  Smartboard


                 A smartboard is used in classrooms as a teaching tool. It is an interactive
                 board that displays information with the help of a projector.                                            17






                                                                                                 21 st
                       Warm             Write the name of following devices:                   Century   #Technology Literacy
                                                                                                 Skills
                         Up!

                                       1.                                       3.
                                                            __________                            __________





                                       2.                   __________          4.                __________








                  Processing Device



                 Central Processing Unit (CPU)  is the processing device that works on input and
                 sends the result to the output devices. The CPU is a

                 chip which is placed inside the CPU box/cabinet.

                 CPU is  also  called  the  “brain” of a  computer as  it is
                 responsible  for  all  the  work  done.  A  CPU  is  further
                 divided into three parts: ALU, CU and MU.

                                                                                         CPU
                                                                                                   CPU box/cabinet
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