Keyboard and Input Devices Quiz

What is the main function of a keyboard?

• To input data into applications software

• To control the position of a pointer on the screen

• To print documents directly

• To store data permanently on the computer

How is a keyboard usually connected to a computer?

• Through an HDMI connection

• Via USB or wireless connection

• Using an Ethernet cable

• Through a serial port

Which type of keyboard is designed to reduce repetitive strain injury (RSI)?

• Virtual keyboard

• Gaming keyboard

• Ergonomic keyboard

• Wireless keyboard

What happens when a key is pressed on the keyboard?

• The CPU stores the key in memory for later use.

• The keypress generates a digital signal that the CPU interprets.

• The computer immediately saves the character to the hard drive.

• The keyboard sends a signal to the monitor to display the character.

What is a disadvantage of using a keyboard?

• It is slower than direct data entry methods like OMR.

• It is the only method of entering text into a computer.

• It cannot be connected to modern devices.

• It requires a continuous internet connection to function.

Which layer in a keyboard completes the circuit when a key is pressed?

• Insulating layer

• Membrane or circuit board layer

• Non-conductive layer

• Plastic key layer

Which of the following tasks is NOT typically performed using a keyboard?

• Typing a document in a word processor

• Entering numbers into a spreadsheet

• Drawing freehand illustrations

• Typing commands into a computer

What is a common problem caused by prolonged keyboard usage?

• Loss of data

• Repetitive strain injury (RSI) in the hands and wrists

• Reduced internet speed

• Overheating of the device

Why are keyboards considered easy for verification checks?

• They highlight errors automatically.

• Users can immediately compare the source document with the data entered on the screen.

• The keyboard has built-in error correction.

• Keyboards use biometric input to verify accuracy.

Which of the following is a disadvantage of ergonomic keyboards?

• They take up a lot of space.

• They are slower than standard keyboards.

• They are not compatible with modern computers.

• They can be more expensive than standard keyboards.