Wireless technologies

802.11

802.11 is a set of standards for a wireless lo-

cal area network. Computer communication

can be 2.4, 3.6 and 5GHz frequency. They

were created by the IEEE LAN/MAN Stand-

ards Committee and are still maintaining it

Infrared

Infrared is a technology that allows compu-

ting devise to communicate though short a

short range of wireless signals. With infrared,

you can transfer files or other digital data to

another device. Infrared are in many laptops

and handheld personal devices. In Microsoft

Windows, infrared connections can be creat-

ed through the same method as other local

area network connections

Bluetooth

Bluetooth is an open wireless technology

standard for exchanging data over a short dis-

tance. For example, if you wanted to send

your friend a picture, you can send it via Blue-

tooth on your phone. The wavelength radio

transmissions in the ISM band from 2400-

2480 MHz from fixed and mobile devices.

3G

3G means 3rd generation mobile telecommu-

nications. It is a generation of standards for

mobile phones. 3G application services in-

clude wide-area wireless voice telephone,

mobile Internet access, video calls and mobile

TV. 3g is one of the most used connection

types for Mobile phones; basically every

phone has 3G.