What Is Linux and Where Does It Hide?

1. What your child learns and why

Linux is a kernel — the most basic program of an operating system. On top of it, people put tools and programs together into ready packages called distributions (for example Debian and Ubuntu). The kernel hides in many things: in phones with Android, in some routers and TVs, in many servers and in supercomputers — but not in every device. Your child also learns what free software is: you may use it, study it, change it and share it. The aim is to make “invisible” technology understandable.

2. Three questions for dinner

• “Which of our devices do you think have Linux inside? How could we find out?”
• “The same engine can sit in different cars. What else in life is “the same inside” but different outside?”
• “If a recipe is free — what can you do with it?”

3. 10 minutes together, no screen — “a recipe you can share”

1. Your child writes a simple recipe (a sandwich, lemonade). Make it together and talk about why each step is there.
2. You copy the recipe, change something and add your name. Now there is a new version.
3. Give both versions to a third person with the same rule: whoever hands it on, hands it on with the same rights. Link it to the four freedoms: use · study · improve · share.

4. What success looks like

• Your child says in words: “Linux is a kernel — like the engine; a distribution is the whole car.”
• Names at least two devices that may have Linux, and one that does not.

5. Common difficulties

• “So Linux is like Windows?” → Both are operating systems, but they are different; Linux is free software and comes in many distributions.
• “Free means no cost?” → Not necessarily: “free” means freedom, not price.

6. Safety

The lesson is only a drawing: nothing is downloaded, installed or changed. Putting Linux on a computer, changing a system and the settings of a computer or router are for an adult, from an official source only. Do not touch someone else's device.

7. Where to go next

Back: DB-RK-14 “Setting Up a Computer for Someone” · Next: DB-RK-16 “The Linux Desktop: The Same, but Different” · Sources and the date of checking are on the lesson page. Brand names belong to their owners.

You don't need to know the answer. Say: “Let's find out together.”