ICT 202 Lecture Notes - Lecture 23: Optical Character Recognition, Radio-Frequency Identification, Optical Mark Recognition

• School: University of Kentucky
• Department: Information Communication Technology
• Course: ICT 202
• Professor: Nicholas Proferes

Document Summary

A scanner is a light-sensing input device that reads printed text and graphics that then translates the results into a form the computer can process. A flatbed scanner works in a manner similar to a copy machine except it creates a file of the document in memory instead of a paper copy. An optical reader is a device that uses a light source to read characters, marks, and codes and then converts them into digital data that a computer can process. A bar code reader, also called a barcode scanner uses laser beams to read bar codes. A qr code stores information in both vertical and horizontal directions. Rfid (radio frequency identification) uses radio signals to communicate with a tag placed in or attached to an object. An rfid reader reads information on the tag via radio waves. Tracking times of runners in a marathon. Tracking location of people and other items.