Wireless Internet
Wireless internet is the latest technology, used for the access of internet. In wireless network radio waves are used to transfer data instead of physical wires. For transfer of data a wireless modem is used, wireless modem establishes your connection with out using telephone lines. When you dial for internet connection through wireless modem you are directly connected with your wireless ISP, after this your data is routed over the wide area network. The speed of wireless modems are high rather then dial up modems, while still a step back then broadband connections.

Wireless Modem interfaces
Some wireless modems are directly plugged into your computer or some are externally attached. Following are some wireless modems interfaces

PCMCIA
Compact Flash
USB
Serial Port

You can also used wireless internet after connecting your mobile with the computer, such as using infrared or data cables.

Wireless Modem Networks
Different wireless modems used different techniques to access the internet. Following three networks are supported by wireless modems.

• CDPD (cellular digital packer data)
• GSM GPRS (general packet radio service)
• GSM EDGE (enhanced data GDM environment)

CDPD
CDPD stands for cellular digital packet data, is wireless internet access technology. This can also be used as packet switching network with cellular network. CDPS connection use TCP/IP(transmission control protocol / internet protocol) protocol, and CLAN (connection less network protocol). The wireless modems released from sierra wireless company use this technology to access internet.

GPRS
GPRS stands for general packet radio services, this special technology is used to transmit data over TDMA and GSM network. This connection is support TCP/IP protocols and X .25 protocol.

EDGE
EDGE stands for enhanced data rate for GSM evolution. This is a wireless technology used for transmit of data over GSM networks. EDGE technology includes all the features of transmission like EGPRS, packet, circuit switching and ESCD. This EDGE technology is replaced by WCDMA (wideband code division multiple access)