output devices Flashcards
output device
equipment which relays data from a computer into an understandable form
laser printer
uses electrostatic charges to bond toner to a page where the text and images are meant to be. the laser then fuses the toner to the page for it to be printed out
inkjet printer
uses printer heads to propel ink onto tiny squares of the page
3D printer
a printer that prints three-dimensional objects by using filament which has been melted by an extruder. these melted filaments mould the shape of the desired object
2d cutter
cuts out of a shelf or material
3d cutter
cuts at any angle as its used for more complex designs
actuators
An actuator is an external device, controlled by a computer, that can affect the real world.
headphones / speakers
outputs analogue sound by converting digital sound either in the computer or in the headphones or speakers
lcd displays
liquid crystal displays use polarising filters to allow only light of the desired colour and intensity through
lcd projectors
uses filters to separate beams of light into red, blue and green
dlps
digital light projectors use a matrix of tiny mirrors facing towards or away from the light source, repositioning themselves to refresh the image. each mirror represents a pixel