keyboard and display interface

What is a Keyboard Display Interface?

• A. A device used for entering data into a computer
• B. A device used for displaying data on a computer
• C. A device used for playing games on a computer
• D. A device used for printing data from a computer

What is an Alarm Controller?

• A. A device used for controlling the volume of the alarm
• B. A device used for setting the alarm time
• C. A device used for detecting a fire alarm
• D. A device used for activating and deactivating an alarm

Which type of keys are available on a keyboard?

• A. Input keys, Output keys and Control keys
• B. Navigation keys, Numeric keys and Alphabetical keys
• C. Function keys, Navigation keys and Control keys
• D. Alphabetic keys, Numeric keys and Special keys

Which type of display is used in Keyboard Display Interface?

• A. CRT
• B. LED
• C. LCD
• D. OLED

Which type of alarm is most commonly used in Alarm Controllers?

• A. Fire alarm
• B. Burglar alarm
• C. Car alarm
• D. Smoke alarm