COMPUTER FUNDAMENTALS

COMPUTER HARDWARE

OUTPUT DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following CAN read from a distance?
A
Magnetic Stripe Reader
B
Barcode Reader
C
Chip Reader and PIN Pad
D
RFID reader
Explanation: 

Detailed explanation-1: -Passive low-frequency (LF) and high-frequency (HF) tags can be read from a distance of up to 3 feet (0.9 meter), while passive ultrahigh-frequency (UHF) RFID transponders can typically be read from 10 to 20 feet (3 to 6 meters) away.

Detailed explanation-2: -RFID security and privacy Tags can often be read after an item leaves a store or supply chain. They can also be read without a user’s knowledge using unauthorized readers, and if a tag has a unique serial number, it can be associated to a consumer.

Detailed explanation-3: -RFID scanners use radio frequency energy rather than visible light to read the RFID tag, so they can read tags through a wide variety of opaque materials like plastic, cardboard, composites or laminates. This comes in handy when you need to quickly scan a roomful of items to identify a certain subset.

Detailed explanation-4: -RFID tags and readers communicate through the modulation of radio waves.

There is 1 question to complete.