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Take Off                                                         Century   #Critical Thinking
                                                                                                  21 st
                                                                                                 Skills
                      Match the following:



                       a.                                              i.  Mouse




                       b.                                              ii.  CPU



                       c.                                              iii.  Monitor




                       d.                                              iv.  Keyboard






                 A computer works on the IPO (Input-Process-Output) cycle. It receives input from the user
                 through input devices, processes it using the CPU and gives back the output using output
                 devices. We have learnt about the parts and uses of a computer in our previous classes. Let us

                 learn more about a computer parts.

                      COMPUTER HARDWARE


                 The parts of a computer that we can see and touch are called Hardware. All input, processing,
                 output  and storage devices  form the  hardware components  of  a computer system. The

                 hardware components are divided into four groups.


                                                                Hardware



                                             Input      Processing      Output       Storage
                                            Devices       Device        Devices      Devices



                 Input Devices

                 The devices that are used to enter data into

                 the computer and give instructions are
                 called input devices. Some input devices
                 you know are keyboard and mouse.

                 Now let us learn about  more input
                 devices.



                                                                                    Computer Hardware and Software  11
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