L2 Computers Are Everywhere Quiz

What is the definition of a computer?

• A device that can store, retrieve, and manipulate data
• A device that can make phone calls
• A device that can play video games
• A device that can take pictures

Which of the following is an example of a device with a computer processor?

• Television
• Bicycle
• Refrigerator
• Pencil

What is the importance of input and output in a computing system?

• To communicate between a human and a processing system
• To control the temperature of the device
• To make the device look more attractive
• To increase the speed of the device

Which of the following is an example of an input device?

• Monitor
• Printer
• Keyboard
• Scanner

Which of the following is an example of an output device?

• Mouse
• Scanner
• Touchscreen
• Printer

What is the purpose of an engine control unit (ECU) in a car?

• To read values from sensors and adjust engine settings
• To control the radio and air conditioning
• To monitor the fuel level
• To open and close the car doors

What is pseudo code?

• A kind of made-up code that represents the general organization and flow of a computer program
• A programming language used to write computer programs
• A code that is specific to one programming language
• A code that is used to hack into computer systems

What is the purpose of a water dispenser on a fridge?

• To dispense ice cubes
• To dispense water
• To control the temperature of the fridge
• To play music

What is the input for a water dispenser on a fridge?

• Keys to set the temperature
• Keys to set the amount of water to dispense
• Keys to play music
• Keys to turn on the lights

What is the output for a water dispenser on a fridge?

• Speaker that beeps when keys are pressed
• Speaker that plays music
• Speaker that announces the temperature
• Speaker that turns on the lights