செயற்கை நுண்ணறிவு என்றால் என்ன?
What is Artificial Intelligence?
AI is not a robot from a movie. It is the technology in your phone's face unlock, your YouTube recommendations, and your email spam filter. Meet AI where it actually lives.
Let's Learn
What you will learn today
Understand what AI is, what it can and cannot do, and where it already appears in your life.
You Already Use AI Every Day
Before this lesson, notice how many of these you have experienced in the last 24 hours: • Your phone suggested the next word as you typed a message • YouTube or Spotify recommended a song or video you liked • Your camera automatically focused on your face for a photo • A search engine understood a typo and showed what you meant • Spam was filtered from an email inbox All of these are AI. You have been living with artificial intelligence your whole life.
Artificial Intelligence (AI) is technology that enables computers to perform tasks that would normally require human intelligence. 'Artificial' simply means made by humans (as opposed to natural intelligence which evolved over millions of years). 'Intelligence' here means the tasks we associated with human thinking: understanding language, recognising faces, making decisions, learning from experience. AI is not one single thing — it is a broad field containing many different techniques, tools, and approaches.
செயற்கை நுண்ணறிவு என்பது மனித அறிவு தேவைப்படும் பணிகளை கணினிகள் செய்ய உதவும் தொழில்நுட்பம்.
Narrow AI vs General AI
Every AI system you interact with today is Narrow AI — it is brilliant at one specific task but completely helpless outside of it. Examples of Narrow AI: • Face recognition: identifies faces in photos — cannot write a poem • Chess AI: beats world champions — cannot drive a car • Spam filter: detects junk email — cannot have a conversation • Voice assistant (Siri/Alexa): answers questions — cannot learn your unique situation deeply General AI (AGI) — a machine that can do anything a human can do — does not exist yet. When films show robots taking over the world, they imagine AGI. We are far from that.
- Narrow AI: expert at one task, helpless at others
- General AI: human-level across all tasks — does not exist yet
- All current AI is Narrow AI
📐 AI You Can See Right Now
Here are AI systems you likely interact with: • Google Translate: converts language using learned patterns • Autocomplete: predicts your next word based on billions of examples • Face Unlock: your phone learns what your face looks like • Recommendation feeds (YouTube, Instagram, TikTok): predicts what you want to watch next • Google Maps: learns from millions of drivers to predict traffic • Chatbots like ChatGPT: understand and generate human language Each of these took years of research and enormous amounts of data to build. Each does one job incredibly well.
How Is AI Different from Normal Computer Programs?
A normal program follows rules the programmer wrote explicitly. Example: IF temperature > 30°C THEN display 'It is hot'. An AI program learns its rules from data — the programmer does not write them. Example: Show the AI millions of weather photos labelled 'hot' and 'cold' — the AI figures out the rules itself. This is the key insight: AI learns patterns from examples rather than following hand-written instructions. This makes it possible to build systems for tasks so complex that no human could write all the rules (like recognising any face in any lighting).
AI Is a Tool, Not a Mind
Even the most impressive AI — one that writes essays, draws pictures, or holds conversations — has no understanding, feelings, or goals. It is a sophisticated pattern-matching system trained on vast amounts of human-created content. When ChatGPT seems to 'understand' you, it is predicting the most likely next words based on patterns in its training data — not thinking about what you mean. This is still incredibly impressive engineering, but it is very different from human understanding.
Misconception: 'AI Thinks Like Humans'
AI does NOT think like a human. Humans think by combining memory, emotion, context, culture, body sensations, and imagination. AI processes numbers — specifically, it applies mathematical operations to patterns represented as numbers. When an AI image generator creates a stunning painting, it is not imagining, feeling inspired, or making artistic choices. It is combining patterns from millions of images in a way that statistically resembles what humans describe as beautiful. This does not make AI less impressive — but understanding the difference helps you use it wisely.
Challenge Round
Spot the AI
For each of these, decide: Is this AI? Why or why not? 1. A light that turns on automatically when you enter a room (motion sensor) 2. A Netflix suggestion of a show you might like 3. A calculator giving you the square root of 7225 4. An app that identifies a plant from a photo 5. Autocorrect changing 'teh' to 'the'
What You Learned
AI is technology that performs tasks requiring human-like intelligence. All current AI is Narrow — brilliant at one thing, helpless at others. AI learns from data rather than following hand-written rules. And despite how impressive it seems, AI does not think — it finds patterns.
You now know what AI is, where it lives in your life, and the crucial difference between Narrow and General AI.
↪ Next lesson: How exactly does a machine learn? We will look inside the learning process.
Key Points
முக்கிய குறிப்புகள்
- ✓AI: systems designed to perform tasks that normally require human intelligence
- ✓Narrow AI: does one specific thing (face recognition, spam filtering, translation)
- ✓General AI: can do anything a human can — this does not exist yet
- ✓Examples you have used: Google search, Siri, YouTube recommendations, autocorrect
- ✓AI is not magic — it is mathematics, data, and computing power
Glossary
சொல் அகராதி
Artificial Intelligence
செயற்கை நுண்ணறிவு
Narrow AI
குறுகிய AI
General AI
பொது AI
Recommendation
பரிந்துரை
Autocorrect
தன்னிய திருத்தம்
Practice Activities
Quizவினாடி வினா
Answer each question to check your understanding.
What makes AI different from a regular computer program?
Match the Termsபொருத்துக
Click a term on the left, then click its matching definition on the right.
Click a term, then click its matching definition.
Terms
Definitions