What the machine is doing

Four parts, whatever the device

Whether it is a laptop, tablet or phone, the same four things are happening:

• Hardware — the physical object. Screen, keyboard, battery.
• Operating system — the software running the device. Windows, macOS, Android, iOS. It manages everything else.
• Applications (apps) — programs that do a job. A browser, email, a word processor.
• Storage — where your files live when nothing is open.

When people say "my computer is slow" they usually mean one app is slow, or storage is full, or the internet connection is poor. Knowing which one is the whole of most troubleshooting.

Getting online

Wi-Fi connects your device to a router in a building. Mobile data connects through the phone network and usually costs money by the amount used.

Practical points:

• Public Wi-Fi is not private. Fine for reading news; avoid banking on it, or use mobile data instead.
• A padlock in the browser address bar means the connection to that site is encrypted. It does not mean the site is honest — scammers use padlocks too.
• "No internet" is different from "device broken". Check whether other devices in the house work. That one question solves half of all home connection problems.

Accessibility settings — for everyone

Every device has these, and they are not only for disabled people. Anyone struggling to read a screen should turn them on:

• Make text bigger. Settings → Display or Accessibility.
• Zoom — pinch two fingers, or Ctrl and + on a keyboard.
• Read aloud — most devices will read text to you.
• High contrast / dark mode — easier for tired eyes.
• Voice typing — speak instead of typing. Genuinely useful if typing is slow or painful.

Turn these on now if you need them. People struggle for years with text too small to read comfortably because they did not know it could change.

When something goes wrong

The honest order of operations:

1. Restart it. Genuinely fixes most problems and is not a joke.
2. Check the connection.
3. Check for updates.
4. Search the exact error message. Someone has had it before.
5. Ask. Nobody works this out from first principles.

You have not broken it. Almost nothing you can do by clicking is irreversible, and files you delete go to a Bin or Trash first.

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Check your understanding. Open your device's accessibility settings. Find text size and change it. Find how to make the device read text aloud. Change them back if you prefer.