INPUT channels.docx - INPUT-OUTPUT CHANNELS A human being’s interaction with the outside world occurs through information being received and given

INPUT channels.docx - INPUT-OUTPUT CHANNELS A human...

This preview shows page 1 - 2 out of 4 pages.

INPUT-OUTPUT CHANNELS A human being’s interaction with the outside world occurs through information being received and given: input and output. In an interaction with a computer, the user receives information that is output by the computer and responds by providing input to the computer i.e. the user’s output (user gives) becomes the computer’s input and the user’s input (user receives) becomes the computer’s input. Just like in the real world, there are various channels that can be used for input and output purposes. Although a particular channel may have a primary role as input or output in the interaction, it is more than likely that it is also used in the other role. For instance, sight may be used primarily for receiving information from the computer, but it can also be used to provide information to the computer (e.g. when using an eye-gaze system). From the human being’s standpoint: Input occurs mainly through the senses Senses: sight, hearing, touch, taste and smell. The first three are the ones being significantly used in HCI (and especially sight). Output occurs mainly through the motor control of effectors Effectors: These are body parts that can respond to stimulation. There are several effectors e.g. fingers, eyes, head, foot, vocal system, etc. In interaction with the computer, fingers play the primary role (typing, mouse control), with some use of voice, and eye, head and body position.
Image of page 1

Subscribe to view the full document.

Image of page 2
  • Spring '16
  • Magu

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes