Barcodes vs radio-frequency identification tags:

GS Paper 3: Syllabus: Developments in science and technology.   Context: Baggage tags equipped with radio-frequency identification (RFID) will soon be available at Delhi’s Indira Gandhi International Airport, marking a first of its kind for the country.   What is RFID? Radio Frequency Identification is a wireless tracking system that consists of tags and readers. …

What are RFID tags?

GS Paper 3: Topics Covered: Developments in Science and Technology.   Context: RFID tags will now be used to track Amarnath pilgrims. The decision was taken amid heightened security threats to the pilgrimage.   What is RFID? Radio Frequency Identification is a wireless tracking system that consists of tags and readers. Radio waves are used to …