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💻 How Computers Work

Years 6 to 10 · Read up first

10 questions. Get 8 right to earn 10 minutes. All 10 right = +5 bonus. They start easy and get harder as you go, so treat the first few as a warm-up. Every one you miss comes back with the answer and why.

1. What is a network, in computing terms?

Two or more devices connected so they can share dataA single computer working aloneA type of computer virusA brand of computer

2. What is a 'byte'?

A unit of internet speed onlyA group of 8 bitsA type of file extensionA group of 100 bits

3. What is a server?

A computer that stores information or provides a service to other computers over a networkA cable that connects two computers directlyA type of computer gameA password manager

4. What does HTML mainly do on a webpage?

Makes the internet connection fasterControls how the page looks, like colours and fontsDefines the structure and content of a page, like headings, paragraphs and linksStores your passwords securely

5. What is a 'variable' in programming?

A named place to store a value that a program can use and changeA physical part of the hardwareA type of computer virusA permanent, unchangeable setting

6. An image made up of a grid of tiny coloured squares is usually called what?

A vector imageA raster or bitmap image, made of pixelsA binary imageA byte image

7. Why is a network of just two directly connected computers still called a network?

A network simply means devices connected together to share data, regardless of how manyA network needs at least ten connected devices to countOnly wireless connections between computers count as a networkTwo computers connected together is called a server instead

8. What is the key difference between RAM and long-term storage (a hard drive or SSD)?

RAM is always bigger in size than storageRAM and storage are two names for exactly the same thingRAM is fast but temporary, storage is slower but keeps data when the power is offStorage is only used for photos, RAM is only used for text

9. Why can a large digital photo take up much more storage space than a small one?

A larger photo usually has more pixels, and each pixel needs its own stored colour informationLarger photos are always stored using a completely different file typeStorage space is only affected by the photo's file nameFile size has nothing to do with how many pixels an image contains

10. Why might two websites with completely different addresses (URLs) actually be running on the same physical server?

Servers can only ever host one website for their entire lifetimeA single server can host many separate websites at once, each identified by its own domain nameEvery website must have its own dedicated physical server, with no exceptionsDomain names and physical servers are always matched one to one

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