3. Hardware - Input & Output Devices: Computer Science CIE IGCSE

Front

What are LED screens made of?

Back

Tiny R/G/B LEDs

Front

How can LED brightness be controlled?

Back

By varying the current sent to it

Front

What does OLED stand for?

Back

Organic light emitting diode

Front

Which screen can be bent into any shape? Options: LED screens, OLED screens, LCD screens

Back

OLED screens

Front

What are OLEDs made of?

Back

Carbon compounds

Front

What do OLEDs create?

Back

flexible semiconductor

Front

Sensors are...

Back

Input devices

Front

Do sensors require human input?

Back

False

Answer explanation

This is what makes them different to other input devices.

Front

Read/measure physical data from their surroundings and output it as a signal to a computer

Back

Sensor

Front

How many sensors are there to learn?

Back

14