6.9 Infrared, Bluetooth, and NFC

How is NFC different from Bluetooth?

NFC has to be within two inches of the device you are transferring data to.

What advantages does Bluetooth offer over infrared?

Bluetooth has longer range then infrared. Bluetooth is also able to transfer more data than infrared. The last advantage of Bluetooth over infrared is there is security.

How does Bluetooth avoid interference with other Bluetooth devices in the area?

Bluetooth uses ad hoc connections between devices to setup personal are networks called piconets.

Of the three Bluetooth device classifications, which transmits the farthest? Which is the most common class used by devices?

Class 1 transmits the furthest, and class 2 is the most common class used by devices.

Which types of devices use NFC transmissions?

Smartphones

Which types of devices typically use Bluetooth wireless?

Speakers, headphones, mice, keyboards, etc. A lot of input and output devices.

What are typical infrared devices and applications?

Typically used for remote control devices, and applications used is PDA.