Wi-Fi is more like traditional Ethernet networks, and
requires configuration
to set up shared resources, transmit files, and to set up audio links (for
example, headsets and hands-free devices). It uses the same radio frequencies as
Bluetooth, but with higher power output resulting in a stronger connection.
Wi-Fi is sometimes called "wireless Ethernet." This description is accurate;
it also provides an indication of its relative strengths and weaknesses. Wi-Fi
requires more setup, but is better suited for operating full-scale networks
because it enables a faster connection, better range from the base station, and
better security than Bluetooth. A personal computer must have a Bluetooth
adapter in order to be able to
communicate with other Bluetooth
devices (such
as mobile phones, mice and keyboards). While some desktop computers already
contain an internal Bluetooth adapter, most require an external Bluetooth dongle.
Most recent laptops come with a built-in Bluetooth adapter.
Unlike its predecessor, IrDA, which requires a
separate adapter for each device, Bluetooth allows multiple devices to
communicate with a computer over a single adapter
More abstracts about the Wi-Fi