Human–computer interface




The human–computer interface can be described as the point of communication between the human user and the computer. The flow of information between the human and computer is defined as the loop of interaction. The loop of interaction has several aspects to it, including:

  • Visual Based :The visual based human computer interaction is probably the most widespread area in Human Computer Interaction (HCI) research.
  • Audio Based : The audio based interaction between a computer and a human is another important area of in HCI systems. This area deals with information acquired by different audio signals.
  • Task environment: The conditions and goals set upon the user.
  • Machine environment: The environment that the computer is connected to, e.g. a laptop in a college student's dorm room.
  • Areas of the interface: Non-overlapping areas involve processes of the human and computer not pertaining to their interaction. Meanwhile, the overlapping areas only concern themselves with the processes pertaining to their interaction.
  • Input flow: The flow of information that begins in the task environment, when the user has some task that requires using their computer.
  • Output: The flow of information that originates in the machine environment.
  • Feedback: Loops through the interface that evaluate, moderate, and confirm processes as they pass from the human through the interface to the computer and back.
  • Fit: This is the match between the computer design, the user and the task to optimize the human resources needed to accomplish the task.

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