Wireless network Common Sense

Now everyone in the indoor Internet, in addition to plug the Internet network, there is the gradual popularization of wireless internet, in fact, wireless network is just a cable network extension, from the LAN to the WLAN, solve the final access problem, we can in the range of wireless signal coverage of the Internet.

But this is after all within the scope of the LAN, we still need like routers, switches and network cards such as the conventional networking devices to access the network, in the wireless network they changed a name, the following small series to everyone a brief introduction of the often used wireless LAN equipment. (Wireless internet Only eliminates the point to reach the user's network cable access, simply said, with a wireless network card, ADSL or community broadband access to the wireless router WAN, the computer can be online)

Wireless ap= Wireless Switch

AP for access point abbreviation, generally translated as "Wireless Access Node", which is mainly to provide wireless workstations to the wired LAN and wireless workstations from the wired LAN access to the wireless workstation in the access points covered by the radio station can communicate with each other. In layman's terms, wireless APs are the bridge between wireless and wired networks, and wireless APs are the equivalent of a wireless switch, connected to a wired switch or router, where the wireless card connected to it is divided into IP from the router.

Wireless router = Wireless ap+ Common router

Wireless router: As the name suggests, first of all, it retains the original router, such as 1 WAN, 4 LAN port, sharing the Internet, network management functions; Then it adds the antenna, wireless technology chips and other wireless devices for wireless signal transmission and reception.

Wireless network card: It is the terminal wireless networking equipment, is in the wireless LAN's signal coverage, through the wireless connection network carries on the Internet to use the wireless terminal device. Specifically, a wireless card is a network card that enables your computer (desktops and notebooks) to use wireless signals to access the Internet. (Computer science)

Classification of wireless card:

One is the notebook built-in miniPCI wireless network card (also known as "Centrino" wireless module)

The wireless network card is currently mainly based on Intel's "Centrino" module (such as Intel PRO/Wireless 2100 network connection), many notebook manufacturers also have their own wireless modules. The "Centrino" notebook is already equipped with a wireless network card.

The other is a desktop-specific PCI interface wireless network card

Desktops Of course can also be wireless Internet, PCI interface wireless card plug in the motherboard PCI slot, without external power, save space and system resources, can make full use of existing computers.

One is the "non-Centrino" notebook computer dedicated to the Pcmica interface card

PCMCIA Wireless network card cost is lower, more suitable for "non-Centrino" notebook users, but with the development of notebook computers, I believe that the future notebook computer will be pre-installed miniPCI wireless network card.

One is the USB interface wireless network card

This NIC, whether it is a desktop user or a notebook user, can be used as long as the driver is installed. One thing to be aware of when choosing is that only a wireless card with a USB2.0 interface can meet the requirements of a 802.11g wireless product or 802.11g+ wireless product.