Computer Science
Grade 3
20 min
Output Devices: Showing Information Out
Review of monitor and speakers as output devices.
What you'll learn
- Identify at least two different output devices (like a monitor and a printer) when shown pictures of them.
- Explain, in their own words, what an output device does, using the phrase 'shows information'.
- Match at least three different types of information (like pictures, words, and videos) to the output device that would show them (monitor, printer, speakers).
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Identify at least three common output devices.
Explain that an output device takes information from the computer and shows it to people.
Sort output devices by the sense they use: sight (visual) or sound (audio).
Match a specific task, like 'listening to a story,' to the correct output device.
Describe how a monitor shows pictures using tiny dots of light called pixels.
Give an example of how a computer's 'secret code' (data) becomes something we can see or hear.
Have you ever wondered how your favorite cartoon gets from inside the computer to your screen? 🖥️ Let's find out!
We are going to explore special computer parts called output devices. These are the magical tools that let the computer share its secrets, like pictures...
2
Key Concepts & Vocabulary
TermDefinitionExample
Output DeviceA part of the computer that shows you information. It takes information OUT of the computer so you can see it or hear it.A monitor is an output device because it shows you pictures and words from the computer.
MonitorA screen that shows visual information like pictures, games, and words. It's like a TV for your computer.You use a monitor to watch videos on YouTube or play a computer game.
PrinterA machine that takes words and pictures from the computer and puts them on paper.Using a printer to make a copy of your homework or a coloring page.
SpeakersA device that plays sounds, music, and voices from the computer so you can hear them out loud.Listening to your favorite song or the sounds in a video game.
HeadphonesSmall, personal speakers that you we...
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Core Syntax & Patterns
The 'Information Out' Rule
Computer ➡️ Sends Data ➡️ Output Device ➡️ Shows Information
This is the path information takes. The computer's brain sends a secret code (data) to an output device, which then turns that code into something we can understand, like a picture or a sound.
The 'Right Tool for the Job' Pattern
IF you want to see it, THEN use a visual device. IF you want to hear it, THEN use an audio device.
This is a conditional rule. You have to choose the correct type of output device based on the kind of information you want. You can't hear a picture or see a sound!
The 'Data to Display' Pattern
Digital Data (0s and 1s) ➡️ Becomes ➡️ Pixels (for sight) or Vibrations (for sound)
The computer stores everything as a speci...
4 more steps in this tutorial
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Challenging
A smart speaker (like Alexa or Google Home) listens to your voice and then talks back to you. Which part is the output device?
A.The part that makes the sound of the voice
B.The microphone that hears your question
C.The plastic case it comes in
D.The power cord
Challenging
A computer at the city's traffic center sends a signal to a traffic light to change color. In this system, what is acting as the output device?
A.The computer at the traffic center
B.The traffic light itself
C.The wires connecting the computer and the light
D.The cars waiting at the light
Challenging
In a game you are coding, you write the rule: "IF the player's health is 0, THEN show the 'Game Over' screen." This rule connects a data condition (health is 0) to an action on which output device?
A.The speakers
B.The printer
C.The monitor
D.The keyboard
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Frequently asked questions
What grade level is "Output Devices: Showing Information Out"?
Output Devices: Showing Information Out is a Grade 3 Computer Science lesson on ExcelOS.
What will I learn in Output Devices: Showing Information Out?
You'll be able to: Identify at least two different output devices (like a monitor and a printer) when shown pictures of them; Explain, in their own words, what an output device does, using the phrase 'shows information'; Match at least three….
Is "Output Devices: Showing Information Out" free to practice?
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How many practice questions are included with Output Devices: Showing Information Out?
This lesson includes 27 practice questions across multiple difficulty levels, each with instant feedback and explanations.