Scanning devices are tools that convert physical documents or images into digital formats. Common types include flatbed scanners, handheld scanners, and document feeders. These devices use light sensors to capture the details of the original item, allowing for easy storage, sharing, and editing on computers. In addition to traditional scanners, there are also 3D scanners that capture the shape and appearance of physical objects. These devices are used in various fields, including engineering, medicine, and art, enabling the creation of digital models for analysis, design, or reproduction.