What is a wireless device?
wireless device may refer to any communication device that does not require a physical wire to transfer information to another device. Wireless headphones equipped with a receiver use either a radio frequency (RF) or infrared technology to communicate with a transmitter connected to a sound source, say television. In most cases, however, when someone refers to a wireless device, they talk about a network device that can transmit data to another wireless network device without physically connected. In the home and office wireless routers with built -in modems, hubs and switches broadcast a local network for computers in the area to connect. The distance between the broadcasts varies greatly depending on many factors, but the LAN usually extends 300 feet (91.44 m) or more. Any computer in the network can share uphorses connected to the network, including high -speed Internet, printer or other office equipment.
To connect to a wireless LAN (WLAN), the computer must have a wireless network card or adapter installed. The network card is an internal wireless device made for using the same language or protocol that uses wireless routers. These protocols regularly develop into new standards, but on average cause compatibility problems. If the router uses a protocol that is not supported by an internal wireless device, an external wireless adapter can be used in an external port. The most common type is USB Dongle, but wireless network adapters are also available in ExpressCard® formats, which offers notebook users a selection that port would rather use.
Another type of wireless device may be part of the personal area (PAN) network. The Lord is created with the btechnology Luetooth®, which is designed to connect a personal digital device at very short distances just a few feet,Although the standard extends to 30 feet (9.14 m).
Bluetooth® is a very flexible and convenient type of network. It can be used to send printing tasks from a notebook to a nearby printer without difficulty setting shared sources via LAN. It is also used to connect Bluetooth® mobile phones, personal digital assistants (PDA) or Apple products to each other or other Bluetooth® supported equipment, including headsets, external speakers or computers. Because Bluetooth® uses a different frequency range than Lans, you can use the Bluetooth® network within the "and LAN without interference.