With the
wireless Internet service provided by wireless Internet companies, one has the freedom to access the Internet anytime, anywhere. This service enables Internet, E-mail, and office applications. The wireless Internet includes data card with which wireless Internet capabilities are provided to laptops and notebooks. This is done by providing EDGE and GPRS technologies in a single PC Card package. USB Modem is used to get instant access to Internet. This technology was introduced in 1997 and it is supported by Microsoft Windows, Apple Mac OS, open source Unix and Linux operating systems.
The Wi-Fi enabled devices like cell phones, PCs, or PDA can be connected to the Internet when it is within range of a wireless network connected to the Internet. Hotspots are the area covered by one or several interconnected access points. Devices can also be connected with each other in peer-to-peer mode. Now the facilities are such that PCs can network with each other and connect with the Internet. Digital cameras can also transfer wireless images.
DSL incorporated Routers with Wi-Fi access points are used in homes to access the Internet.
The
wireless Internet companies provide services which reduce the cost of network expansion and deployment. The wireless network adapters are now built into most laptops. The chip sets prices have dropped making this service really cost effective. Moreover, different brands competing with each other have client network interfaces and access points that are inter operable at a basic level of service. The wi-fi services are available in more than 250,000 public hotspots and WPA with strong passwords cannot be easily cracked.
Some standard devices are wireless access points, wireless adapters, wireless routers, wireless ethernet bridges, wireless repeaters, RP-SMA or RP-TNC antenna connectors. The non-standard devices include USB-Wi-Fi adapters, food container Cantennas, parabolic reflectors, Long Range Wi-Fi kits.
The top ten wireless Internet companies of the world are as follows:
- SpeedNet services, Inc
- CommSpeed
- Prairie Inet
- AMA TechTel Communications
- Mesa Networks
- FirstStep Internet
- Blue Moon solutions
- Owensboro Municipal Utilities
- Digis Networks
- WisperTEL
The direct sequence spread spectrum radio technology and the multi career orthogonal frequency division multiplexing radio technology are used by wireless Internet users. This has enabled the development of Wi-Fi, HomeRF and Bluetooth.