Your phone says it is connected to Wi-Fi, but websites will not load. How can both things be true? Wi-Fi and the internet are two different parts of the connection.
The simple answer: Wi-Fi connects your device to a nearby network without a cable. The internet connects networks around the world. Your Wi-Fi can work even when that network’s internet connection is down.
Think of your driveway and the road
Imagine your home network is your property. Wi-Fi is a way to move around that property. Your internet connection is the way out to the wider road system.
Your driveway can be clear while the road outside is closed. In the same way, your phone can reach your home router over Wi-Fi while the router cannot reach the internet.
What does Wi-Fi do?
Wi-Fi lets a phone, laptop, or other device join a nearby network using radio signals. At home, a router often provides that wireless connection.
A Wi-Fi connection can let devices communicate locally, such as a computer sending a document to a network printer. Local tasks may still work without internet access, though features that use an online service will need it.
What does the internet do?
The internet is a worldwide network of connected networks. It lets your device reach things outside your home, such as websites, online email, and video streaming services.
Your internet provider supplies the connection that links your home network to it. Equipment varies: you might have a modem and router, a combined box, or a fiber connection box and a router.
Can I use the internet without Wi-Fi?
Yes. A computer can connect through an Ethernet cable. A phone can use mobile data from its cellular provider. Wi-Fi is one way to connect; it is not the only way.
If a phone opens websites while Wi-Fi is off, it may be using mobile data. That does not tell you whether your home internet is working.
Why do the Wi-Fi bars look full when nothing loads?
The bars usually show how strong the wireless signal is between your device and a nearby Wi-Fi access point. They do not guarantee that the internet connection beyond it is working.
Strong Wi-Fi is like standing beside a clear driveway. It does not tell you whether the road outside is open.
A simple way to narrow down the problem
Try another website. One site may be having trouble.
Try another device on the same Wi-Fi. If several devices cannot get online, the problem may involve the shared network or internet connection.
Notice whether only one device is affected. That device’s connection, settings, or app may need attention.
When someone asks what an IP address is, think of a street address. A delivery needs a destination. Information traveling across a network needs one too.
The simple answer: An IP address helps information find a device on a network. IP stands for Internet Protocol. You do not need to memorize that to understand the idea.
Think of sending a package
You would not tell a delivery driver, “Take this to the blue house somewhere.” You would give an address. When your computer requests a web page, network equipment uses IP addresses to help send information to the right destination and return the reply.
The comparison is useful, but an IP address is a network address. It is not your actual street address.
Your home is like an apartment building
Many home networks work like a building with one outside address and different apartment numbers inside.
Public IP address: The address used for your internet connection on the outside.
Private, or local, IP address: An address used by a device inside your home network.
Your laptop, phone, and printer can each have a different local address. Your router helps their traffic reach the internet. A local address might look like 192.168.1.25. That is an example, not a setting you need to enter.
This describes a common home setup. Some providers share a public address among several customers, and newer networks can give devices their own public addresses.
Why do we type website names instead of numbers?
Remembering a name is easier than remembering an address. DNS works like an address book: it helps your browser find the IP address associated with a website name. A name can lead to more than one address.
Can an IP address change?
Yes. Many addresses are assigned automatically and can change. Moving from home Wi-Fi to mobile data also changes the connection you use. An IP address is not a permanent name tag for a person.
Why would I need to know one?
A printer problem is a good example. Your computer needs to reach the printer on your network. If the printer’s local address changes, an old saved connection may stop finding it.
IP address = a destination for network information. Public and local addresses describe different parts of the journey. Website names help you avoid memorizing the numbers.
Everyday online safety, in plain English · Updated October 2, 2026
An email says your account will close today unless you click a button. Is it real? You do not have to decide while the message is pressuring you.
The quick answer
Pause. Leave the message’s links and attachments alone. Check through a route you already trust. Open the company’s app yourself, use a known bookmark, or call a number from your card or statement.
Watch: Email says your account will close? Check this first.
Phishing is a trick that tries to get you to give away information, send money, or open something harmful. An email may pretend to be from a company or person you trust.
Warning signs worth checking
Pressure: “Act now,” a threatened account closure, or a reward that supposedly expires immediately.
An unexpected request: A bill, attachment, or sign-in demand you were not expecting.
Private information: A request to reply with a password, payment details, or a verification code.
An odd sender address: The name says one company, but the actual address looks unrelated or misspelled.
These are clues, not a perfect test. A polished message with your name and a familiar logo can still be fake. A familiar sender’s account can also be misused.
“Pay a small fee within one hour or your package will be returned. Use the button below.”
A safer next step: Open the delivery company’s official app or check the order through the store where you bought it. Do not use the email’s payment button to investigate.
This fictional example shows the pattern: an unexpected problem, a deadline, and a request to act through the message.
Check the claim without using the message
Stop before clicking, replying, scanning a QR code, or calling its number.
Open the service through a known app, saved bookmark, or address you know is correct.
Look for the claimed problem in your account, or contact the company through a trusted number.
If the message appears to come from a friend, confirm through a separate conversation using their usual contact details.
If you do not know the correct address, ask someone you trust to help verify it. The top search result alone is not proof of authenticity.
A verification code belongs in a verified sign-in process you started. Do not read it to someone who contacts you or approve an unexpected sign-in request.
Report it
Use your email service’s Report phishing option when available. In Gmail on a computer, open the message’s More menu beside Reply and choose Report phishing. Avoid its links and attachments while doing this. Menu wording varies by app.
Do not bypass a warning just because the message looks important. For Gmail instructions, see Google’s phishing guide.
What if I already responded?
Stop interacting and take the next step that matches what happened:
Entered a password: Go directly to the real service, change it, and change it on other accounts where you reused it. Review account security and turn on additional sign-in protection.
Shared card or bank details, or sent money: Contact the provider promptly using its official contact information.
Downloaded or opened something suspicious: Update your security software and run a scan. Ask a trusted support provider if you need help.
Browsers often save files in a folder called Downloads, unless you choose another location or change the settings.
The browser’s downloads list may offer “Show in folder” or a similar option. On Windows, look in File Explorer. On a Mac, look in Finder.
Phone apps may save items to a Files app, a photo library, or their own storage. If you cannot find an item, check the app’s download instructions.
Download, open, and install
Download: Bring the item to your device.
Open: View it or use it with an app.
Install: Set up software so the device can run it.
Downloading an app installer does not always install the app. It may need another step. A document or picture usually does not need an installation step.
Download or stream?
Streaming plays online music or video as it arrives. It normally needs a continuing connection. A download can let you use a saved item later.
Some services allow offline downloads only inside their app. Those copies may expire or depend on your account. They are not always ordinary files you can move elsewhere.
Before you click Download
Make sure you recognize the source.
Look for the file you intended, rather than a large advertisement marked Download.
Get app installers from the official store or software maker.
Do not bypass a browser or device warning just to finish the download.
Any downloaded file can carry risk. A familiar-looking filename alone does not prove it is safe.
Still can’t find the file? Open your browser’s Downloads list (often Ctrl + J on Windows, or Command + Option + L in Safari on Mac), then select the downloaded item or choose Show in folder if available. Do not run an unfamiliar installer just to check what it is.
If the download does not finish
Check your connection, available storage, and the browser’s download status. Wait until it says the download is complete before expecting to open the full file.
Repeatedly choosing Download can create several copies. Check whether the item already arrived before trying again.
Computer basics, in plain English · Updated October 1, 2026
Your computer offers several power choices. Here is what the main ones mean.
The simple answer
Sleep pauses for a break. Shut down turns the computer off. Restart closes and starts the computer’s system again. Save your work before choosing a power option.
Sleep: taking a short break
Sleep uses less power and usually keeps your session ready to return to. Waking it often brings you back to the apps you were using.
The details vary by device and settings. Sleep is not a substitute for saving: a flat battery or power problem can still interrupt your work.
Shut down: finishing for now
Shut down closes the session and turns the computer off. Use the on-screen command so the system can finish properly.
On Windows, choose Start → Power → Shut down. On a Mac, choose Apple menu → Shut Down. Save first and let it finish.
Restart: a fresh start for the system
Restart closes the system and starts it again. It can help after a software problem or when an update asks for it.
On Windows, choose Start → Power → Restart. On a Mac, choose Apple menu → Restart.
If instructions say Restart, use that choice. Turning off the monitor or closing a laptop lid is not the same action.
Which should I choose?
A short break: Sleep is usually convenient.
Finished using it: Shut down is an option when you no longer need it running.
An app or device is acting strangely: Save, then try Restart.
An update requests a restart: Follow its instructions and allow time to finish.
What about the monitor’s power button?
On a setup with a separate monitor, that button usually controls the screen only. The computer may still be running.
A laptop or all-in-one combines parts in one housing. Learn more in What Is a Computer?
Before you step away
Save your work and lock your screen if others could access it. Locking protects your session; it does not necessarily put the computer to sleep.
If a long upload or other task needs to continue, check its requirements and your device’s sleep settings. Do not assume closing the lid will keep it running.
Avoid pulling the power plug or holding the power button as your normal way to turn off a computer. Forced power-off can lose unsaved work.
Computer basics, in plain English · Updated October 1, 2026
Someone says your photos are “in the cloud.” They are talking about computers, rather than something floating in the sky.
The simple answer
A cloud service uses computers you reach through the internet. Cloud storage lets you keep files on a service’s computers, called servers.
An everyday example
You take a picture on your phone. A photo service may upload a copy to its servers. Later, you sign into that service on your computer and see the picture there too.
Depending on your settings, the phone may keep a full copy, a smaller preview, or download the original when you need it.
What is an upload?
Upload means sending something from your device to an online service. Download means bringing something from that service to your device.
Think of uploading a photo as putting it in an online storage space, and downloading as bringing a copy back.
What is syncing?
Syncing keeps connected copies up to date. Change a synced document on one device, and the change may appear on your other devices.
That includes deletions. Removing a synced photo on your phone may remove it from the service and other connected devices too.
Is the cloud a backup?
Some services provide backup features, but cloud storage and syncing alone do not guarantee you can recover everything.
Check whether your service keeps deleted files or older versions, and for how long. Important files should have another recoverable copy. Test that you can actually open or restore that copy.
Do I need the internet?
You normally need a connection to upload new files or fetch files that are only online. Some apps let you mark files for offline use.
Seeing a filename or thumbnail does not always mean the full file is on your device. Open what you need while connected, and check the service’s offline settings before traveling.
What should I check?
The account: Know which sign-in holds your files.
The status: Check that uploads have finished.
The space: Services often have storage limits.
The sharing: Check who can view a shared file or link.
The recovery: Know how to recover deleted items.
Before deleting photos to free space, find out whether Delete removes them everywhere. Use your service’s documented free-space feature if that is what you intend.
Computer basics, in plain English · Updated October 1, 2026
You have a photo you want to send to someone. Email can carry that picture along with your message.
The simple answer
An attachment is a file sent with an email. Think of it as putting a photo inside an envelope with your letter.
Before you begin
Find the photo and check that it is the right one. If you need help finding a saved picture, start with our files and folders guide.
You also need the person’s email address. A small typing mistake can send your picture to the wrong place.
The basic steps
Start a message. Open your email app or website and choose Compose, New message, or a similar option.
Add the recipient. Enter their address in the To field. Check any suggested contact before selecting it.
Add a subject and message. For example, “Photo from our picnic.”
Choose Attach. Look for a paperclip, an Attach button, or a photo option.
Choose your photo. Find it in the file or photo picker and confirm your choice.
Wait for it to attach. Look for a filename, thumbnail, or completed upload.
Check, then send. Confirm the recipient and the picture before pressing Send.
The labels vary between email apps. On a phone, the app may ask for access to photos. If it offers selected-photo access, you can choose only the pictures you want to share.
A Gmail example on a computer
In Gmail, start a message with Compose. Select the Attach files paperclip, choose the saved photo, and select Open. Wait for the attachment to finish before sending.
Start with one photo and check that it arrives. For a group of pictures, compare the total file size with your email service’s limit. If the message will not send, use a sharing link rather than repeatedly attaching the same files.
An attachment sends a copy with the message. A sharing link points to a file held by an online service.
Large photos or groups of photos may exceed your email service’s attachment limit. The service might suggest a link instead. If you use one, check who can open it; sending a link does not always give the recipient permission.
A quick check before Send
Is the address correct?
Did I choose the right photo?
Does the photo show anything private I do not want to share?
Has the upload finished?
Start by sending one ordinary photo to your own email address. Open the received message and see what the attachment looks like.
If someone asks for a clearer copy, use the app’s original-size option if available and within the service’s size limit.
Your device can have many apps, just as a kitchen has different tools for different jobs.
How do I open one?
Look for its name or picture, called an icon. On a phone or tablet, you usually tap it. On a computer, you can choose it from the app menu, search for its name, or open its desktop icon.
Some desktop icons need a double-click. Items in menus usually need one click.
How do I close one?
Save your work first. Computer apps usually have a close button on the window. A Mac app can stay running after its window closes; its menu’s Quit option closes the app.
On a phone, going back to the home screen leaves the app’s screen. The phone manages what can keep running in the background. You generally do not need to force-close every app after using it.
An app, a file, and an account
These do different jobs:
App: The tool, such as a photo viewer.
File: The saved item, such as your dog’s photo.
Account: Your sign-in with a service, often connected to an email address.
Installing an email app does not automatically create an email account. Removing an app does not necessarily delete your account with its service.
Where do apps come from?
Some arrive with your device. Others come from its official app store or the software maker’s official website. Check the app’s name, maker, and any cost before installing.
If an app asks to use your camera or location, consider whether that fits what you are doing. A video call needs a camera; a simple calculator usually does not.
Try it yourself
Open your device’s calculator. Work out 2 + 2, then leave or close it. You have used an app to do a task.
Computer basics, in plain English · Updated November 3, 2026
Copy and paste lets you use the same words in another place without typing them again. You might copy an address into a message or a recipe into a note.
How do you copy and paste?
Select the words, copy them, click where you want them to go, then paste. On Windows, use Ctrl + C to copy and Ctrl + V to paste. On a Mac, use Command (⌘) + C and Command (⌘) + V.
Copy keeps the original text in place. Paste adds a copy at the spot you choose. You can also use a mouse and the Copy and Paste menus, as explained below.
Copy and paste keyboard shortcuts at a glance
Looking for the keys? Hold Ctrl on a Windows computer or Command (⌘) on a Mac, then press the letter shown. These shortcuts work in many programs, including documents, email, and browser text boxes.
Copy: Ctrl + C (Windows) or Command + C (Mac).
Paste: Ctrl + V (Windows) or Command + V (Mac).
Cut: Ctrl + X (Windows) or Command + X (Mac).
Select all: Ctrl + A (Windows) or Command + A (Mac).
Undo: Ctrl + Z (Windows) or Command + Z (Mac).
Example: To copy a sentence, highlight it, hold Ctrl and tap C. Click where you want the copy, hold Ctrl and tap V. The original stays where it was.
1. Select the words you want to copy
To copy a sentence with a mouse, put the pointer at its beginning. Hold the main mouse button, move to the end of the sentence, then release. The selected words usually have a colored background.
This is called selecting or highlighting. Only the selected words will be copied.
2. Copy with a mouse or keyboard
Right-click the selected words and choose Copy if the menu offers it. You can also use these keyboard shortcuts:
Computer
Copy
Paste
Windows
Ctrl + C
Ctrl + V
Mac
Command (⌘) + C
Command (⌘) + V
The plus sign means “hold the first key, press the second key, then release.” Do not type a plus sign. For example, hold Ctrl, tap C once, then release Ctrl.
No right-click on your Mac? Hold the Control key while clicking the selected words, then choose Copy. Control-click opens the menu; Command + C is the Mac copy shortcut.
Copying often gives no visible confirmation. The selected words stay where they are. Continue to the next step.
3. Choose where the words should go
Open your note, document, or message. Click in a place where you can type. A blinking line often shows where the words will appear.
If other words are selected there, pasting may replace them. Click an empty place if you want to add text.
4. Paste the copied words
Right-click the typing area and choose Paste, or use the Paste shortcut above. You should now see the copied words.
Copying uses a temporary holding place called the clipboard. Copying something else usually replaces its current contents. The clipboard is not a reliable place to save work.
Try it yourself: a copy-and-paste exercise
Open a new, unimportant note or document.
Type “Milk and bread.”
Select those words and copy them.
Click on a new line and paste.
You should see the words twice. You have kept the original and made a copy.
Copy and paste not working? Check these first
Make sure the text is selected. Look for a colored highlight over the words before choosing Copy. If nothing is highlighted, select the words and copy again.
Click somewhere you can type. Try a blank note or document. You cannot paste text into ordinary text on a web page. Look for a blinking typing cursor in a text box, document, or message.
Use the right shortcut. Windows uses Ctrl + C and Ctrl + V. Mac uses Command + C and Command + V. If the shortcut fails, try the app’s Edit menu or its right-click menu.
Copy the text again if the wrong words appear. Copying another item usually replaces the clipboard’s current contents. Go back to the original words, select them, copy, then paste without copying anything else in between.
Check whether the source is an image or the app restricts copying. A photo or screenshot of words is different from selectable text. Some devices have a text-recognition feature, but the normal selection steps may not work on a picture. Some apps also limit copying or pasting.
If it works in a plain note but not in another app, focus on that app or typing area. If a paste accidentally replaces words, use the app’s Undo command before making more changes.
How to copy and paste on an Android phone or iPhone
Touch and hold a word until selection handles appear. Drag the handles to cover the words you want, then tap Copy. Open the message, note, or other place where you want the words, touch and hold the typing area, and tap Paste. Some apps use slightly different menus.
To copy a link, touch and hold the link and look for Copy link. You can also copy an address from the browser address bar.
Can I copy a website address?
Yes. Click the address bar at the top of your web browser. Select the full address, copy it, then click in a message or note and paste it. These steps copy the address; they do not copy the entire website.
Can I copy and paste files the same way?
You can also copy files, but you select a file and paste into a folder rather than selecting words and pasting into a typing area. Start with the text exercise above, then read What Are Files and Folders? to understand where files go.
How to paste without the original formatting
If text arrives with unexpected fonts or colors, use your app’s Paste as plain text or Paste and Match Style option. Many Windows browsers and apps support Ctrl + Shift + V; on Mac, the shortcut varies by app. You can also look in the Edit menu for a plain-text paste option.
Copy and cut are different
Cut prepares selected text to be moved and can remove it from the original place. Start with Copy while practicing. These steps cover text; moving files has its own rules.
Computer basics, in plain English · Updated October 1, 2026
You saved a document, but where did it go? Understanding files and folders makes that question easier to answer.
The simple answer
A file is a saved item, such as a photo, a letter, or a video. A folder is a place to organize files. Think of a file as one piece of paper and a folder as the holder you put it in.
What counts as a file?
A photo of your dog, a shopping list, a song, and a saved receipt can all be files. Each file has a name so you can tell it apart from other items.
An app is the tool you use to work with a file. A writing app opens a document; a photo app opens a picture. The tool and the item are different things.
What does a folder do?
A folder groups items together. You might have a folder called “Family Photos” and another called “Receipts.” A folder can also hold other folders.
Example: a folder called “Receipts”
Grocery receipt.pdf — one file
Printer receipt.pdf — another file
2025 receipts — a folder holding older receipts
The names are your labels. They do not have to be fancy. “Dentist appointment October” is easier to recognize later than “Document 7.”
What is the difference between a file and a folder?
A file contains information, like one photograph, spreadsheet, or PDF. A folder organizes files and can contain other folders. For example, Documents → Taxes → receipt.pdf means the file receipt.pdf is inside the Taxes folder, which is inside Documents.
How to create a folder
Windows: open File Explorer, go to Documents, right-click an empty space, choose New → Folder, type a name, and press Enter.
Mac: open Finder, go to Documents, then choose File → New Folder. Name it and press Return.
Give folders clear names such as “Family Photos” or “2026 Receipts.” You can move a file into a folder by dragging it there, but start with a practice file until you are comfortable.
Save, open, and download
Save: Keep your work in a file. Some apps save automatically; others need you to choose Save.
Open: View or work with a file you already have.
Download: Bring a copy of a file from an online service to your device.
When you save something, notice both its name and its location. If the app offers Save As, it usually lets you choose a name or location for a copy.
Where should I look for my files?
On Windows, File Explorer helps you find files and folders. On a Mac, Finder does that job.
Common places include:
Downloads: Often where files downloaded through a browser go, unless you chose another location.
Documents: A common place for letters and other written work.
Pictures: A common place for images.
Desktop: The area behind your open windows can also show saved items and shortcuts.
These are starting places, not rules. A file can be saved somewhere else, and some apps keep work in their own library or online account.
A filename may end with letters such as .jpg, .pdf, or .docx. This ending is called a file extension. It helps identify the kind of file.
You do not need to memorize these. Changing “photo.jpg” to “photo.pdf” does not turn a picture into a PDF. Use an app’s export or conversion option when you need a different format.
Copy, move, and delete
Copy: Make another copy and keep the original.
Move: Put the item in a different location.
Delete: Remove the item. It may go to Recycle Bin or Trash, but some deletions are immediate.
Before deleting something important, make sure you have a recoverable copy. If a folder is connected to a cloud service, deleting an item may also remove it from other devices.
Keeping a file in two folders on the same computer can help organization, but it does not protect it if the computer’s storage fails.
Try it yourself
Create a folder named Practice in Documents. Save a short shopping list there with a name you will recognize. Close it, then open the folder and find it again. Practice with a new, unimportant file.
