Convolutional Neural Networks (CNNs):
A CNN is a specialized type of neural network designed to process grid-like data such as images or videos. It uses convolutional layers to automatically detect important features (like edges, textures, and shapes) and pooling layers to reduce data size while keeping key information. CNNs are widely used in computer vision tasks because they can learn spatial hierarchies of features.
A CNN can be used in a smartphone app to recognize handwritten digits in photos, such as reading postal codes on letters.