Wi-Fi or Wireless Fidelity

Wi-Fi or short for "wireless fidelity" is the term for a high-frequency wireless local area network (WLAN).

Wi-Fi technology is gaining acceptance as an alternative to a wired LAN. The 802.11b Wi-Fi technology operates in the 2.4 GHz range offering data speeds up to 11 megabits per second. Modulation used in 802.11 has historically been phase-shift keying (PSK). The modulation method selected for 802.11b is known as complementary code keying or CCK, which makes possible high data speed and is less susceptible to multipath-propagation interference.

According to a recent IDC study, the overall WLAN market is projected to grow from 8.1 million units in year 2001 to over 36 million units by the year 2006. Forecast for wireless connectivity regular users in 2002 is expected to be approximately 2 million and predicted to grow to 20 million by 2006 in the USA alone. Shipment of wireless enabled laptop computers is also expected to grow to 15+ million in 2005, compared to 2.9 million in 2001. Wi fi or wireless fidelity is a technology boon. The Wi-Fi Alliance provides a list of hot spots through its Wi-Fi Zone program.

Wireless LAN (WLAN) is a network which allows access to NUNet and the Internet without the need for any wired connections to the user's machine. With a wireless LAN , you can use wireless for e-mailing, web browsing, home Directory access and printing to local network printers.

A wireless connection works like a wired Ethernet connection. Wireless access may be up to 11 megabits per second. Since the wireless lan network bandwidth is shared among all users connected via wireless in a given area, the network speeds may be noticeably slower when too many people are using wireless, and generally may not be as fast as wired Ethernet.

WML is what HTML is to a web-browser. WMl is based on XML and is a XML application. WML is read by a browser built into the WAP device. In WAP devices the browser is commonly known as a micro browser.

WMLScript

WMLScript is the client side script-language based on ECMAScript. It seems very much like Java Script and in general way it is meant for the same kind of application that actually runs simple code on the client side rather than just render displays. WMLScript has been improved upon to fit the limitations of the WAP environment.