What is the wireless network card?

ByOthilia Primini 2019-12-31 6306

The wireless network card is the wireless terminal equipment, which is used to surf the Internet through the wireless connection network under the wireless coverage of the wireless local area network. Generally speaking, the wireless network card is a device that does not need to be connected to the network cable, and there is a wireless network card integrated in the general notebook, so the notebook can surf the Internet wirelessly, similar to the mobile phone, as long as there is a wireless network signal in the air in the area. Can be connected. Because the desktop computer is not integrated with the wireless network card, it needs to connect the network cable to the network card interface to access the Internet, but it can be connected wirelessly by installing the wireless network card.

At present, wireless network cards generally can be divided into two kinds, one is PCI wireless network card or USB wireless network card, the other is 3G wireless network card similar to U disk, the former one is mainly suitable for installing wireless network card in desktop computer, its network signal is limited, and the principle of wireless network card with notebook is the same, it can accept wireless network signals such as wireless router wireless network and hot spot WIFI and so on. The 3G wireless network card mainly interfaces such as telecom, mobile, Unicom and other 3G wireless signals to access the Internet.

Because the principle of the PCI wireless network card or USB wireless network card is the same as that of the notebook wireless network card, the accepted signal can only be used near the wireless router, or some wifi wireless hot spots can be used, which has strong geographical limitations, is widely used in homes and other places, and has the advantage of poor portability and low price, because it uses a network cable to connect to the wireless router. The wired network is converted into a wireless signal for use by wireless devices. Because 3G network and mobile phone signal share the same network, the network signal coverage is very wide, so the biggest advantage of using 3G wireless network card is that it can access the Internet wirelessly anytime and anywhere, and the mobile portability is very strong, but the disadvantage is that 3G wireless Internet access is more expensive.

How to use the mobile 3G wireless network card?

How to use the 3G wireless network card? first of all, we need to choose which network operator. There is a certain gap between wireless Internet access speed and charges of different operators. At present, according to different network operators, it can be divided into telecom Tianyi 3G wireless network card, China Mobile 3G wireless network card and China Unicom 3G wireless network card. 3G wireless network card equipment and U disk appearance is similar, generally need to place a similar to the mobile phone card, as long as the device into the computer USB interface, and then install the software provided by the network operator, enter the Internet account in the software and password connection can achieve 3G wireless Internet access, Internet charges are mainly package hours or by traffic charges, the price is more expensive.

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