Technology for Kids
Technology shapes almost everything we do, from the phones in our pockets to the satellites above us. These lessons explain how computers, the internet and coding work, and how to stay safe and smart online, with examples and a quiz for each topic.
All 118 Technology topics
How Computers Work
A computer takes input, processes it and gives output.
The Internet
The internet is a giant network of connected computers.
Coding and Algorithms
An algorithm is a set of step-by-step instructions.
Binary Numbers
Computers use only two digits, 0 and 1, called binary.
Staying Safe Online
Never share personal details with strangers online.
Robots
Robots are machines programmed to do tasks.
Strong Passwords
A strong password is long, mixes letters, numbers and symbols, and is never shared.
Artificial Intelligence
AI is software that learns patterns from lots of data.
Digital Footprint
Everything you post online leaves a trail called a digital footprint.
Hardware and Software
Hardware is the physical parts of a computer you can touch, like the keyboard and screen.
Operating Systems
An operating system (OS) manages a computer's hardware and runs apps.
Search Engines
Search engines find web pages that match the words you type.
Email sends messages over the internet.
Cloud Storage
Cloud storage keeps your files on servers on the internet so you can reach them from any device.
Cyberbullying
Cyberbullying is using phones or the internet to be mean or hurt someone.
Computer Viruses
A computer virus is a harmful program that can damage files or steal information.
Variables in Coding
A variable is a named box that stores a value, like score = 10.
Loops in Coding
A loop repeats instructions many times so you don't have to write them again.
If and Else Decisions
Programs make decisions with conditions: if something is true, do one thing, else do another.
Debugging
A bug is a mistake in code.
Programming Languages
People write code in languages like Scratch, Python and JavaScript.
Drones
Drones are flying machines controlled remotely or by programs.
3D Printing
A 3D printer builds objects layer by layer from plastic or other materials using a digital design.
Virtual Reality
Virtual reality (VR) uses a headset to make you feel inside a computer-made world.
GPS and Satellites
GPS uses satellites orbiting Earth to find your position.
QR Codes
A QR code is a square pattern that stores information such as a web address.
Smart Homes
Smart homes use internet-connected devices like lights, thermostats and speakers that you can control with a phone or voice.
Batteries
Batteries store chemical energy and turn it into electrical energy.
Touchscreens
A touchscreen senses where your finger touches by detecting tiny electrical changes.
Input and Output Devices
Input devices, such as keyboards, mice and microphones, send information into a computer.
Printers
A printer turns digital documents into paper copies.
The Processor (CPU)
The processor, or CPU, is the part of a computer that carries out instructions.
Memory and Storage
Memory, or RAM, holds information while a computer is working.
Bits and Bytes
Computers store information as bits, which are either 0 or 1.
How Digital Images Work
A digital image is made of tiny squares called pixels, each with its own colour.
Digital Sound
Digital sound is created by measuring a sound wave thousands of times per second and storing the numbers.
Video Game Design
Video game designers plan the characters, levels, rules and story of a game.
Functions in Coding
A function is a named set of instructions that can be used again and again.
Lists in Coding
A list stores several items in a single variable, in a set order.
Sensors
A sensor detects something in the environment, such as light, heat, sound or movement, and sends a signal.
Wi-Fi
Wi-Fi uses radio waves to send data between devices and a router, so they can connect to the internet without cables.
Bluetooth
Bluetooth is a short-range wireless technology that connects nearby devices, such as headphones to a phone.
Privacy Settings
Privacy settings control what information an app or website can see and share about you.
Phishing Scams
Phishing is when someone pretends to be a trusted person or company to trick you into sharing passwords or money.
Software Updates
Software updates fix bugs, close security holes and add new features.
Backups
A backup is a copy of your important files kept in a safe place.
Spreadsheets
A spreadsheet is a grid of cells arranged in rows and columns.
Word Processing
Word processing software helps you write, edit and format text.
Making Presentations
A presentation uses slides to share ideas with an audience.
Typing Skills
Typing well means using all your fingers and looking at the screen, not the keys.
Keyboard Shortcuts
Keyboard shortcuts are key combinations that do a task quickly, such as Ctrl+C to copy and Ctrl+V to paste.
Machine Learning
Machine learning is a type of AI where computers learn patterns from examples rather than following fixed rules.
Self-Driving Cars
Self-driving cars use sensors, cameras and computers to understand roads and make decisions.
Microchips
A microchip is a small piece of silicon that holds millions or billions of tiny electronic switches called transistors.
Lasers
A laser makes a very narrow, bright beam of light in which all the waves are the same colour and move together.
Fibre Optics
Fibre optic cables are thin strands of glass that carry data as pulses of light.
Wearable Technology
Wearable technology is clothing or accessories with built-in computers and sensors, such as fitness trackers and smartwatches.
Smartwatches
A smartwatch is a watch with a small computer inside.
Barcodes
A barcode is a pattern of lines and spaces that a scanner reads to identify a product.
Emojis and Emoticons
Emojis are small pictures used in messages to show feelings or ideas.
Screen Readers
A screen reader is software that reads text on a screen out loud.
Pixels
A pixel is the tiniest dot of colour on a screen.
Computer Ports
Ports are sockets on a computer where you plug in cables and devices, such as USB ports for a mouse or a headphone jack for sound.
File Extensions
A file extension is the short code after the dot in a file name, like .jpg for pictures or .txt for plain text.
Coding Sequences
A sequence is a set of steps that run one after another in order.
Cookies on the Web
Cookies are small pieces of data a website saves on your device to remember things like your settings or what is in your basket.
Algorithms in Everyday Life
An algorithm is a set of steps for solving a problem.
Video Calls
A video call lets people talk and see each other over the internet.
Digital Cameras
A digital camera records pictures as digital data using a light sensor.
Podcasts
A podcast is a digital audio show that you can listen to on a phone or computer.
Online Maps
Online maps use satellites and GPS to show places, roads and routes.
Screenshots
A screenshot is a picture of what is shown on your screen at one moment.
Flowcharts
A flowchart uses shapes and arrows to show the steps of a process or a program.
Scratch Programming
Scratch is a free coding tool where you snap together colourful blocks to make stories, games and animations.
Autocorrect
Autocorrect is a feature that automatically fixes spelling mistakes as you type.
Audio Recording
Audio recording captures sound using a microphone and saves it as a digital file.
Computer Mice
A computer mouse is a small device you move across a surface to control the pointer on a screen.
Smart Speakers
A smart speaker is a device you can control with your voice.
Voice Assistants
A voice assistant is a program that understands spoken questions and responds with answers or actions.
Search Tips
Good search tips help you find what you want faster.
Screen Time Tools
Screen time tools show how long you spend on devices and can help you set limits.
Robot Vacuums
A robot vacuum is a small machine that cleans floors on its own.
E-readers
An e-reader is a device designed for reading e-books.
Digital Citizenship
Digital citizenship means using technology responsibly, respectfully and safely.
Spam Emails
Spam is unwanted email, often sent to lots of people at once.
Bookmarks
A bookmark saves the address of a website so you can return to it later.
Downloading Safely
Downloading files from trusted sources helps keep your device safe from viruses.
Cloud Photos
Cloud photo storage saves your pictures on remote servers over the internet, so you can access them from different devices.
Charging Safely
Charging devices safely means using the right charger and cable and not leaving batteries to overheat.
Computer Networks
A computer network links devices together so they can share files, printers and internet access.
Data Centres
A data centre is a building full of powerful computers that store and process information for websites and apps.
Tablets
A tablet is a flat, portable computer with a touchscreen.
Laptops
A laptop is a portable computer with a built-in screen, keyboard and battery.
Hard Drives
A hard drive stores large amounts of data using spinning disks or flash memory.
USB Sticks
A USB stick is a small storage device that plugs into a USB port.
Robotic Arms
A robotic arm is a machine with jointed sections that can move and grasp objects.
Electronic Tickets
An electronic ticket is a digital pass stored on your phone or emailed to you.
Self-Checkout Machines
Self-checkout machines let shoppers scan and pay for their own items at a shop.
Game Consoles
A game console is a computer designed for playing video games.
Fitness Trackers
A fitness tracker is a wearable device that measures steps, heart rate and sleep.
Streaming Videos
Streaming lets you watch videos over the internet without downloading the whole file first.
Image Editing
Image editing software lets you change pictures by cropping, adjusting colours, adding text and removing unwanted parts.
Video Editing
Video editing means arranging, trimming and joining clips to tell a story.
Computer Fonts
A font is a set of letters, numbers and symbols with a particular design.
Hyperlinks
A hyperlink is a clickable link that takes you to another webpage, document or part of a page.
Captions
Captions are written words shown on screen that describe what is being said or what is happening in a video.
Spell Checkers
A spell checker is a tool that finds and suggests corrections for spelling mistakes in your writing.
Two-Factor Login
Two-factor login asks for a second proof of identity, such as a code sent to your phone, after you type your password.
Password Managers
A password manager is an app that stores your passwords securely and can create strong new ones.
Digital Music Players
A digital music player plays songs stored as digital files on a device.
E-mail Attachments
An e-mail attachment is a file sent along with an email, such as a picture or document.
Online Forums
An online forum is a website where people discuss topics by posting messages.
Cyber Heroes
A cyber hero is someone who uses their online skills to protect others from harm.
Virtual Pets
A virtual pet is a computer program or app that you care for on a screen.
Smart Lights
Smart lights can be controlled from a phone or with a voice command.
Online Shopping Safety
When shopping online, use secure websites, check that the address starts with https and never share passwords.
Wearable Cameras
A wearable camera is a small camera that can be attached to clothing or a helmet.
Digital Art Tablets
A digital art tablet is a flat device used with a special pen to draw directly on a computer.
Frequently asked questions about Technology
What is coding for kids?
Coding is writing step-by-step instructions that a computer can follow. Children can learn it with visual tools such as Scratch before moving on to text-based languages.
Is it safe for children to use the internet?
It can be, with good habits. Keep personal details private, use strong passwords, think before posting and always tell a trusted adult if something worries you.
Do I need an expensive computer to learn coding?
No. Many free tools run in a web browser, and you can learn the basic ideas of coding with just paper, pencil and a set of instructions.