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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.
                                                                                          Input      processing   Output
                 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 the                       Storage
                 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.



                                                                                   #Computer Hardware and Software  11
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