A scanner is a type of device that can take in a wide range of data, perform an analysis, and compile a report on its findings. Basic scanners can be used to provide general information about the world, such as the identification of a person or object. Specialized scanners can be used to attain in-depth knowledge about the subject being scanned, such as the mineral contents of asteroids. Scanners are also utilized on spacecraft alongside radar to detect the presence of enemy combatants.