Understanding Computer Systems Quiz

What happens inside your computer when a key is pressed?

• The screen brightness increases

• The computer shuts down

• A switch closes and current flows into a chip

• The battery charges faster

What is a scan code in the context of keyboard inputs?

• A security feature in modern keyboards

• A programming language

• A type of error code

• A number associated with each key based on its position

How is the binary data from a keyboard transmitted to a computer?

• Via sound waves

• Through USB or Bluetooth

• Through power cables

• Using light signals

What role does the CPU play when a key is pressed?

• It processes the binary data

• It cools down the system

• It disconnects the monitor

• It powers the keyboard

What does the operating system do with the scan code?

• Converts it into an ASCII or Unicode character

• Sends it to the printer

• Stores it for future use

• Deletes it immediately

How does an application like Microsoft Word use the event created by the OS?

• It saves the document automatically

• It sends an email

• It displays the character on the screen

• It shuts down the application

What is the final step in displaying a character on the screen after a key is pressed?

• The mouse becomes inactive

• The computer plays a sound

• The keyboard lights up

• The GPU displays the image on the monitor

What is the primary function of the GPU in this process?

• Generating electrical power

• Translating binary code into an image

• Storing data permanently

• Creating sound effects

Which device is considered an input device in the described scenario?

• Speaker

• Keyboard

• Hard drive

• Monitor

Which device is considered an output device in the described scenario?

• Keyboard

• USB cable

• Monitor

• CPU