A scanner is a device that converts physical documents or images into digital format, allowing them to be viewed, edited, or stored on a computer.
Characteristics of a Scanner
- Image Capture Technology - Scanners use various technologies, such as CCD (Charge-Coupled Device) or CIS (Contact Image Sensor), to capture images of the physical document. CCD scanners provide higher quality and are commonly used for detailed scans, while CIS scanners are more compact and cost-effective.
- Resolution - Scanners have different resolution settings, measured in dots per inch (DPI). Higher DPI settings result in greater image detail and clarity, which is important for scanning high-resolution images or detailed documents.
- File Formats - Scanners convert physical documents into digital files, which can be saved in various formats such as JPEG, PDF, TIFF, or PNG. This versatility allows users to choose the format that best suits their needs for storage or sharing.
