Input Devices

Question 1

What is the function of a keyboard?

Answer 1

It allows users to enter text and commands into a computer.

Question 2

Name specialized keyboards.

Answer 2

Braille Keyboard – Used by visually impaired individuals, with raised dots for tactile reading.
Color-Coded Keyboard – Helps children or users with cognitive impairments differentiate keys.
Large Print Keyboard – Features high-contrast, enlarged text for better visibility.
Holographic Keyboard – Projects a virtual keyboard onto a surface and works via touch. Uses bluetooth.

Question 3

What is a trackpad?

Answer 3

A touch-sensitive pad used to move the cursor, commonly found on laptops.

Question 4

How does a microphone work in a computer system?

Answer 4

It converts sound waves into digital signals for voice input, recording, or communication.

Question 5

Mouse

Answer 5

Used to control the position of a cursor on the screen
Used in GUI environment
Wheeled mouse

Question 6

Optical mouse

Answer 6

Increased tracking
resolution thus
smoother response
No need for special
surface
No chance of having
dirt get inside mouse
and interfere with
the tracking sensor