Artificial intelligence (AI) is software that learns patterns from examples instead of following only rules a person wrote by hand.
Rules vs learning
A normal program follows exact steps: if the price is over $50, add free shipping. An AI system is shown thousands or millions of examples and finds the pattern itself. Show it enough photos labelled "cat" and "dog", and it learns to tell them apart in photos it has never seen.
The main kinds you meet every day
- Recommendation AI: YouTube, Netflix and Amazon suggesting what to watch or buy next.
- Vision AI: your phone unlocking with your face, or Google Lens reading a sign.
- Language AI: chat tools like ChatGPT and Claude, and live translation.
- Speech AI: voice typing and smart speakers.
How a chat AI writes an answer
A large language model has read a huge amount of text. When you ask a question, it predicts a good next word, then the next, and so on, very fast. That is why answers sound fluent. It is also why the AI can sound sure while being wrong.
What AI is good at, and where to be careful
| Good at | Be careful with |
|---|---|
| Drafting emails, summaries and ideas | Facts, numbers and dates (check them) |
| Explaining a topic in simple words | Very recent news |
| Translating and fixing grammar | Private or personal information you paste in |
| Writing and explaining code | Medical, legal or money decisions |
Try it
Ask an AI tool to explain one of my electronics articles to a 10-year-old, then compare its answer with the article. You will quickly see where it helps and where it guesses.