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Before your enterprise adopts the latest wireless network technologies, you will need to Wireless Infrared Data Association (Ir DA) devices have been supported across many Windows operating systems, including Windows 9x/NT/2000.
Windows 2000 natively supports some 802.11 wireless network devices, such as the original Lucent Wavelan card.
Infrared Data Association (Ir DA) and Bluetooth are the main WPAN wireless technologies; they exist in the physical layer (see Table 9-1).
The devices that take advantage of a WPAN include PDAs, printers, cameras, cell phones, and access points, to name a few.
With a closer proximity to the access point (AP), speeds of up to 11 Mbps can be reached.
It is easier to understand wireless technologies by categorizing them into three layers, as shown below.
The three layers are In the device layer (mobile devices) are gadgets ranging from the smallest cell phone to PDAs and notebook computers.
These devices use wireless technologies to communicate with each other.
The physical layer contains different physical encoding mechanisms for wireless communications.