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Input and Output Devices within HCI
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  • Course
  • Unit 23 - Human Computer Interaction
  • Institution
  • PEARSON (PEARSON)

This document provides different information about different input and output devices within HCI - Human Computer Interaction. It includes a variety of detail on different sub-categories that are classed as input and outputs. Example: Types of Keyboards, Touch Screens and many more.

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Document information

  • October 2, 2019
  • 3
  • 2018/2019
  • Class notes
  • Unknown
  • All classes

Subjects

  • hci
  • btec level 3
  • computing
  • human computer interaction

Written for

  • BTEC
  • PEARSON (PEARSON)
  • Information Technology 2010 QCF
  • Unit 23 - Human Computer Interaction
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Use of input and output devices
When you are designing you will have a range of input devices;
keyboard, mouse, touch screen.
Inputs allows users to use the devices properly.
The usability of an input device depends on the provision and
appropriate feedback of the system


Input Devices
- Keyboard
- Mouse
- Touch Screen
- Scanner
- Joy stick
- Microphone


Types of keyboard
- Qwerty Keyboard: Used most common alphabetic character
arrangement. Good for variable data entry and flexible. Fast
trained touch typists. Keyboard use different layouts for
different languages.
- Chord: Can be used to text on mobile. Various arrangement.
Words formed by combinations of keys being pressed.
Pointing Devices
- Indirect and direct devices
- Indirect: Uses a secondary device
- Direct: Allows the user to point directly
Examples
- 3D trackers (Relays position and orientation to a receiver)
- Joystick (Small stick, movable in any direction in a fixed socket)
- Mouse (Continuous input device)
- Trackball (Rotatable ball in a fixed socket)
- Mole (Foot mouse)
Touch-sensitive screen
- Special screen that detects the position of a finger touching it

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