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Input & Output (Input Devices (Scanners (Readers (MICR (cheques),…
Input & Output
Input Devices
Keyboards
contains keys
users enter
data
instructions
desktop
typing area
function keys
toggle keys
navigation keys
keyboard shortcut keys
ergonomic
Pointing Devices
small symbols
on screen
location/shape change
types
mouse
touchpad
trackball
Touch Screens
Pen Input
stylus
digital pen
Motion Input
gesture recognition
Scanners
light sensing
reads printed:
text
graphics
OCR
OMR
Readers
barcode
QR code
RFID
magstripe
MICR
cheques
Voice Input
microphone
Video Input
video camera
webcam
video conference
Input definition:
data / instruction
entered to computer memory
Output Devices
Displays
monitors
quality:
resolution
response time
brightness
dot pitch
contrast ratio
Printers
produces text & graphics
physical medium
Types
Non-impact
ink-jet
laser-jet
thermal
label
Impact
striking mechanism
ribbon
Speakers
Headphones
Earbuds
Output definition:
processed data
Projector
Interactive Whiteboard
Games: Joysticks/Wheels
Force feedback
Assistive Technology
Head mounted pointer
Braille printer