Artificial Intelligence (AI)

Artificial intelligence (AI) is the field of computer science focused on building systems that can perform tasks that would normally require human intelligence — things like understanding language, recognizing images, making decisions, and solving problems.

For most of computing history, software did exactly what it was programmed to do. Each rule produced a set result. The machine had no flexibility — if a situation wasn't covered by the code, it had no way to handle it. Modern AI changes that relationship. Instead of always spelling out every rule in advance, many modern AI systems learn from data, identify patterns, and make judgments on their own. The result is software that can adapt, generalize, and handle situations its creators never explicitly anticipated.

The term AI covers an enormous range of technologies. At one end you have narrow systems built to do a single thing exceptionally well — the program that can beat the world's best players at a game like chess or Go, the app that names a plant from a photo, the thermostat that learns your daily routine and warms the house before you wake. At the other end sits the ambition of general AI: systems that can reason and learn across any domain the way a human can. Most AI systems in everyday use fall in the narrow category. Today's leading AI products — the assistants, image generators, and coding tools — are harder to place: they handle a far wider range of tasks than earlier systems, and researchers disagree about whether to call them narrow AI or an early form of general AI. They do not match the full range of human thought.

What has changed dramatically in recent years is not the idea of AI — researchers have been working on it since the 1950s — but how capable these systems have become, how cheaply they can be run, and how broadly they can be applied. The combination of vastly more data, much more powerful hardware, and a breakthrough architecture called the transformer has pushed AI out of research labs and into everyday products. That is why a basic understanding of AI is now useful well beyond technical jobs.