laptop displays/features and mobile devices 1.2/1.3/1.4 Flashcards
What does LCD stand for?
Liquid crystal display
What does OLED stand for?
Orangic light emitting diode
Does LCD require back light to work?
Yes
How does OLED emit light?
By being charged with electrical current
OLED is thinner and lighter than LCD so why isn’t it used for for portables devices such as laptops?
since OLED is organic that means it will display decay/degraded
What does LED stand for?
Light emitting diode
What does CCFL stand for?
Cold cathode fluorescent lamp
Why are CCFL not used as much nowadays?
Because they add thickness to portable product which is not ideal and they use more power than LEDs
What backlight uses an inverter?
CCFL
What is the purpose of a inverter for a backlight?
They convert DC power into AC.
What input does a digitiser use?
A stylus input
What’s an alternative to digitisers?
Touchscreen
Why are function keys used on a laptop?
To save space
What are docking station used for?
To connect externally devices to a laptop mouses, keyboards etc
What are expansion cards used for?
To increase memory via docking station
What is the small version of a docking station called?
Port replicator
What is a security measure you can take to secure your laptop?
Use a physical laptop lock
What feature would a laptop have making presentation easier?
Rotating/removing screen
What input does a tablet/smart phones use?
Touchscreen
What does VR stand for?
Virtual reality
What’s the difference between augmented reality and virtual reality?
Augmented reality is like pokemon go and VR allows you to step into a virtual world
What can e-reader do?
It specialised in reading books but it can also perform other functions such a music etc
Since e-readers don’t use LCD what does that mean?
That means it performs well under direct light and it has exceptionally long battery life
What does GPS stand for?
Global Positioning System
