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INPUT AND OUTPUT (CHAPTER 3) - Coggle Diagram
INPUT AND OUTPUT (CHAPTER 3)
INPUT DEVICES
Keyboard entry
traditional keyboards
laptop keyboards
virtual keyboards
thumbs keyboards
Mouse
optical mouse
wireless mouse
touch pads
Touch screen
can be touched with more than one finger
common on mobile devices
stylus is a pen-like device
Gaming controllers
provide input to computer games
joysticks use pressure and direction of the stick
gaming mice are similar to a mouse but high precision
game pads use both hands
motion sensing device control games by user movement
Scanning devices
optical scanners
a)flatbed scanners
b)document scanners
c)portable scanners
d) 3D scanners
Card readers
magnetic card reader
a) credit cards
b) entertainment cards
c) bank cards
d) other similar cards
Bar code readers
contain photo-electric cells that scan or read bar codes or the zebra striped marks printed on product containers
wand readers
UPCs and MaxiCode readers
Character and mark recognition readers
character and mark recognition devices
a) magnetic-ink character recognition (MICR)
b) optical-character recognition (OCR)
c) optical-mark recognition (OMR)
Image capturing devices
digital camera
web cams
OUTPUT DEVICES
Monitors
known as screens or display screens and present visual images of text and graphics
features
a) clarity b) resolution/pixels c) dot pitch
d) contrast ratios e) size f) aspect ratio
three types
a) liquid crystal display (LCD)
b) light emitting diode (LED)
c) organic light emitting diode (OLED)
Curved monitors
have a concave screen that provides better viewing angles near the edges of the screen
a) used by high-end gamers
b) used for smart watch displays
E-book readers
an e-book is a traditional books printed in electronic form
use e-ink technology
a) kindle
b) nook
Other monitor types
digital / interactive whiteboards
a) connects to a computer or project
b) controlled using a special pen or even your finger
ultra high-definition television (UHDTV)
a) digital output delivering a much clearer and more detailed image that regular HDTV
digital projector
a) project the images from a traditional monitor onto a screen or wall
Printers
translates information that has been processed by the system unit
output referred to as hard copy
features
a) resolution b) color c) speed
d) memory e) duplex printing
printer types
ink-jet printers spray ink at a high speed
laser printers uses a laser light beam to produce images
3D printers create 3D shapes with a thin layer of material repeatedly until created
Audio and video devices
translate audio information from the computer into sounds that people can understand
a) speakers and headphones
bluetooth technology
a) wireless technology
Combination of input and output devices
Drones and robots
drones or unarmed aerial vehicles
robots
virtual reality
Combination of input and output devices
headsets
multifunctional devices (MFD)
telephones
Ergonomics
study of human factors related to things people use