A scanner is a hardware device or a software or combination of both used for examining, reading, searching or monitoring something. Most of the scanners uses light, radiation, ultrasound, or magnetic resonance imaging, as a diagnostic aid.
Note: Don’t get confused with image scanners which converts an image hard copy into digital soft copy. In computing, image scanners are often abbreviated to just scanner. Image scanner is a type of scanner.
A scanner is a machine or software that examines or converts an object into digital format which can be further analysed.
Various types of scanners are as follows: