Section A - 4 - Computer Hardware - Input & Output Devices

Which of these input devices are commonly used for navigating a user interface?

Choose two options.

• Keyboard

• Monitor

• Mouse

• Webcam

By what unit do we measure the resolution of a digitizer?

• Pixels Per Inch

• Dots Per Inch

• Lines Per Inch

• Points Per Inch

What output device is used to produce motion?

• Sensor

• Actuator

• Digitizer

• Monitor

By what unit do we measure the refresh rate of a monitor?

• Hertz

• Frames Per Second

• Pixels Per Inch

• Watts

Which of the following factors are used to judge the performance of a scanner?

Choose two options.

• Resolution

• Sensitivity

• Bit Rate

• Colour Depth

Which of the following factors are used to judge the performance of a printer?

Choose two options.

• Refresh Rate

• Print Speed

• Horizontal Resolution

• Torque

Which of the following factors are used to judge the performance of speakers?

• Resolution

• Range

• Torque

• Wattage