Embedded Files
Output
Output
provide user with feedback
allow for data to be transfered between computers
have a hardcopy after processing
display devices
display devices
phone screens/projectors
phone screens are both input and output
these devices display data for users in various ways
advantages of display devices
advantages of display devices
immediate feedback
interaction between user + computer
displayed content can be easily updated
text can be made bigger for visually impaired users
disadvantages of display devices
disadvantages of display devices
not permanent to view
lead to eyestrain/headaches
work is not private
expensive to replace
Types of output:
Types of output:
visual output
visual output
hardcopy
softcopy
sound output
sound output
speakers
headphones
touch output
touch output
3D printer
controller (vibrations)
Key specifications for output devices:
Key specifications for output devices:
screen size
resolution
contrast ratio
aspect ratio
respones time
lumens for projectors
DVI + HDMI
height + swivel adjustment
viewing angle
built in USB port / webcam / speaker
printers
printers
Specs:
Specs:
Speed - ppm (pages per minute)
resolution - dpi (dots per inch)
monthly duty cycle - max number of pages that can be printed in one month before the printer will need to be serviced
number of colours - 3 or 4 colour printers (ink or catrtidge)
paper options - size/orientation
connections - USB/wireless
duplex - printing both sides of the page
laser
laser
toner
more expensive to buy than inkjet
print faster than inkjet
cheaper to run when printing large quantities and black and white printing
inkjet
inkjet
ink
relatively cheap to buy
print slower than laser
better for printing photos
3D printer
3D printer
physical 3D objects
need 3D modelling software of CAD (Computer Aided-Design)
can be noisy, smelly, slow
interactive whiteboards
interactive whiteboards
input + output
special pens - no ink
advantages
advantages
better for interaction and participation to enhance teaching and learning
better for visual learners
computer functions can be manipulated on board
notes can be made on board and saved
disadvantages
disadvantages
needs dim venue
if the board is small, hard to read
not affordable for all schools
board repairs can be expensive
teachers are fearful of new technologies
drivers
drivers
software that allows computer to communicate with hardware or devices and control them
plug and play
plug and play
series of techologies where the operating system automatically detects a device and the device can be used almost immediately
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