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We all know that computers work on almost all capacities like clerical, programming, designing,
                  manufacturing, etc. However, until HMI came into the picture, their functionality remained the
                  same.



                                Brainy Fact


                     Human-Machine Interaction is not necessarily between human and computer. It

                     could be between human and any machine.


                  With time, business enterprises and other public as well as private organisations deployed

                  systems that were complex in nature and were more powerful with automation. These machines
                  not  only  process  information,  but  also  have the  capabilities  to handle  certain  situations
                  dynamically like humans. For example, machines deployed in stock exchange, industrial plants,
                  aircrafts, etc.

                  The journey of interaction between human and a machine  used to be very complex but as

                  the evolution and inventions introduced, it has become a child's play. Lets look at the devices
                  which made it easier.


                          Components of Human-Machine Interaction

                  To perform a dialog between human and a computer system there are three components that

                  are interconnected— Human, Machine and the interface between them. A computer interface
                  or a program establishes interaction between the user and computer. HMI mainly focuses on
                  this computer interface. Humans and computers use very different channel of communication
                  as you can understand from the data given below:


                               S.No.               Humans                           Computers


                                 1.    Sensory Memory                     Keyboard/Mouse/Touchpad

                                 2.    Short-term memory                  Speech Recognition


                                 3.    Long-term memory                   Text input devices

                                 4.    Visual Perception                  Eye-tracking


                                 5.    Auditory perception                Display screens


                                 6.    Speech and voice                   Printing abilities







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