Neural Network

What it is

A neural network is a computing system loosely inspired by biological brains. It consists of layers of interconnected nodes (neurons) that process information. Each connection has a weight that determines its importance. During training, these weights are adjusted so the network produces better outputs.

Why it matters

Neural networks are the architecture behind modern AI. When people talk about "training a model," they're adjusting the weights in a neural network. Understanding this helps demystify AI—it's not magic, it's mathematics finding patterns through billions of weighted connections.