Your house has an address so letters can find you. Did you know computers, websites, and files have addresses too? Let's find out what a digital address is!
What a "digital address" means and why every device needs one.
Four kinds of digital addresses: URL, email, IP address, and file path.
The parts that make up a web address (URL).
Explain why addresses must be unique, using real-life comparisons.
Think about your home address. It tells the postman exactly which house to deliver your letter to. If two houses had the exact same address, the postman would get very confused — letters might go to the wrong home!
Computers have the same problem. The internet connects billions of devices, websites, and files. So every one of them needs its own special addressA set of letters, numbers, or symbols that shows the exact location of something digital. — a digital addressAn address used to find or send something on a computer or the internet, instead of in the real world..
A digital address helps a computer find the exact website, file, or device it is looking for — just like a postal address helps find the exact house. Without addresses, the internet would be like a city with no street names: nothing could ever be delivered correctly!
Tap each card to reveal what it means and see a real example.
| Postal Address Part | Digital Address Part | Job |
|---|---|---|
| Country | Domain name (kidsworld.edu) | Which website "country" to visit |
| Street name | Folder path (/games/) | Which section to go to |
| House number | File name (play.html) | The exact item you want |
| Postal code | IP address (142.250.183.14) | The exact machine location |
Click each colored part of the address below to learn its job.
Click one item on the left, then click its matching example on the right. Match all four, then press "Check My Matches".
Imagine a town where two different families accidentally have the exact same house address. One day, an important letter with movie tickets arrives — but it gets delivered to the wrong family!
Think about it: Why do you think computers need a system to make sure no two devices ever share the same IP address? What might go wrong if they did?
There is no single "correct" answer here — write what you think and be ready to share it with your class!
Amir typed a web address but missed one letter. His browser showed "Page Not Found" instead of his favourite game.
Think about it: If YOU were designing addresses for a brand-new online school library, what parts would your web address need so students could find the right book quickly? (Hint: think about domain, subject folder, and file name.)
Fill in the boxes below to build a URL, just like the ones you explored earlier.
Answer all questions, then press "Submit Quiz" to see your postmark score.