Computing
What is artificial intelligence?
Quick answer
Artificial intelligence (AI) is computer software that does tasks that usually need human thinking, like recognising pictures, understanding speech or writing text. Most AI today learns from examples.
In one sentence
Artificial intelligence is computer technology that performs tasks we usually link with human intelligence, such as spotting patterns, understanding language and making predictions.
Explained
A normal program follows exact rules that a person has written. "If the number is bigger than 10, show red." Some jobs are too messy for rules. How would you write rules for spotting a cat in a photo? There are too many shapes, sizes and colours.
Many AI systems solve this with machine learning. Instead of being told the rules, the computer is shown a huge number of examples, such as millions of labelled cat photos. It looks for patterns and builds a mathematical model. This is called training. When it sees a new photo, it uses the patterns to guess whether it shows a cat.
robot
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You may have used AI without noticing. It helps to translate languages, suggest the next word in a message, recognise your voice, open a phone with your face, sort spam from email and recommend videos. Chatbots are a type of AI called a large language model. They learn from a vast amount of text and predict which words are likely to come next, which lets them write answers, summaries and stories.
AI is useful, but it has limits you should know:
- It can be wrong. It may state false things in a confident way, so check important facts.
- It can be unfair. If the examples it learned from are biased or incomplete, its answers can be too.
- It does not think or feel like a person. It finds patterns; it does not have experiences.
- It needs people. People decide what AI is for, what data it learns from and how it is checked.
Be careful what you type. Never share private details, such as your address, school or passwords, with an AI tool or website, and ask an adult before using one. AI helps with homework when it explains an idea, but your own thinking is what builds your learning. See algorithms, the step-by-step instructions behind all software, coding and online safety.
Examples
| Task | How AI helps |
|---|---|
| Translation | converts text between languages |
| Photos | finds faces or objects |
| Maps | predicts traffic and routes |
| sorts spam from real messages | |
| Chatbots | write and answer in sentences |
Common mistakes
- "AI knows everything." It can be wrong or out of date.
- "AI is a robot." Most AI is just software.
- "AI cannot be biased." It reflects its training data.
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Artificial intelligence
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Related topics
Algorithm
An algorithm is a precise, step-by-step set of instructions for solving a problem or doing a task. Computers follow algorithms written as code.
Coding
Coding, or programming, means writing instructions in a language a computer understands so it can do a job, like run a game, an app or a website.
Online safety
Staying safe online means keeping personal details private, using privacy settings and strong passwords, being kind, and telling a trusted adult if anything worries you.
Binary
Binary is a number system that uses only two digits, 0 and 1. Computers use binary to store and process all their information.
Debugging
Debugging means finding and fixing mistakes, called bugs, in an algorithm or a computer program. It is a normal part of coding for everyone.
Parts of a computer
A computer has input devices to put information in, a processor to work on it, memory and storage to keep it, and output devices to show results. Software tells it what to do.