Digital cameras are electronic devices that capture and store digital images. They use an image sensor to convert light into electronic signals, which are then processed and stored as digital files. Digital cameras have replaced traditional film cameras in most applications due to their convenience, flexibility, and ease of use. They are used in a wide range of applications, including photography, video recording, surveillance, medical imaging, and more. Digital cameras continue to evolve with advancements in technology, offering higher resolutions, faster processing speeds, and improved features.