Where to plug in a wireless network card for desktop computers
The PCI socket is a slot on the motherboard.
The role and function of a wireless network card is the same as that of an ordinary computer network card, which is used to connect to a local area network. It is only a signal transceiver, and can only be connected to the Internet when it finds an outlet on the Internet. All wireless LAN cards can only be limited to the range of wireless LANs that have been deployed.
Wireless NICs are NICs that do not connect through a wired connection, but use wireless signals to connect. Wireless card can be distinguished according to different interface types, the first is the USB wireless Internet card, is currently the most common; the second is a desktop dedicated PCI interface wireless card; the third is a laptop dedicated PCMCIA interface wireless card; the fourth is a laptop built-in MINI-PCI wireless card.
How to make the wireless network card on the desktop computer to use?
1, the desktop computer to connect the wireless card is as follows: find the computer on the usb socket, the wireless card into the usb socket, at that time, the computer will automatically recognize the wireless card driver. After inserting the usb, the run dialog box will pop up automatically, click the dialog box to run.
2. First, insert the wireless LAN card into the USB port of the computer, and then the computer will automatically recognize and pop up a dialog box. Then click on the dialog box to run setuplnstall.exe, the wireless network card will automatically install the program. When you are ready, you can connect your wifi. Click to enter your wireless password and then click Next.
3, the WIFI receiver will be connected to the computer’s USB port, waiting for the system to recognize the receiver, and then randomly inserted into the driver CD-ROM comes with, run “Autorun.exe” into the driver installation process; if the computer is installed with a 360 security guards or QQ computer butler and other security software, running Autorun.exe will pop up installation prompts.
4, the use of the need to set up a router near the computer wireless network. Desktop computers do not integrate a wireless card, so you need to connect the cable to the card interface to achieve Internet access, but you can install a wireless card to achieve wireless Internet access. Desktop computers can utilize a desktop-specific PCI interface wireless card to connect to the Internet.
5. Find the USB port of your computer and insert the wireless card into the port. Point run, will automatically enter the installation interface, if not automatically pop-up, you need to point to the desktop computer icon, double-click to run will be their own installation. In the lower right corner of the desktop point WIFI signal icon, point to connect to the wireless network name.
How to use the wireless network card in the desktop
1. First of all, the wireless network card will be inserted into the USB port of the computer, and then the computer will be automatically recognized and pop-up dialog box.2. Then click on the dialog box to run the setuplnstall.exe, the wireless network card will be automatically installed the program.3. When you’re ready to connect to your own wifi.4. Click to enter the wireless password, and then Click Next. 5. Finally, you can successfully connect. Classification of wireless network cardWireless network card can be distinguished according to different types of interfaces. The first is the USB wireless network card, is currently the most common one. The second is dedicated to the desktop PCI interface wireless network card; the third is a laptop computer dedicated PCMCIA interface wireless network card; the fourth is a laptop computer built-in MINI-PCI wireless network card. According to the user’s classification, it can be divided into three categories, one is desktop-specific; a laptop-specific PCMCIA interface card; a USB wireless card.MINI-PCI wireless card is widely used in laptop computers.MINI-PCI is a kind of built-in wireless card, Centrino and non-Centrino wireless card standard models can be used. Its advantage is that it does not need to occupy the PC card or USB slot, eliminating the need to carry a PC card or USB card with you. There is not much difference in the price of these wireless NICs, and the performance features are similar, so you can choose according to your needs.
Where is the location of the desktop wireless card
Where is the location of the desktop wireless card? I will introduce you! The following by me to make you a detailed desktop wireless card location introduction! I hope it will help you!
Desktop wireless LAN card location:
If it is a standalone LAN card, usually in the motherboard below the location, inserted in the PCI slot.
If it’s a discrete card, it’s usually located underneath the motherboard in the PCI slot.
Desktop wireless NIC location introduction II:
Desktop computer NIC is plugged into the motherboard or integrated on the motherboard. If the integrated NIC fails, you have to replace the plug-in NIC, the motherboard is usually left on the NIC PCI slot. NIC loose, you can open the chassis (open before please power off), in the PCI slot is generally in the graphics card below, the NIC slot is also the shortest, the best way to identify the best way to connect your network cable is connected to the NIC.
The NIC is loose, you unplug the NIC, the gold finger with an eraser, and then re-inserted back into the general can, if convenient, the best insert the NIC before the slot dust also cleaned down. The following is a picture of the commonly used NICs.
Desktop wireless LAN card location introduction three:
Desktop is generally no wireless LAN card, you can install a more than 100 dollars. After installing, install the wireless network card driver. You can use it.
You can also buy a small 19 dollars. Plug in a desktop computer. Then the cell phone. Laptops and so on can access the Internet. (But you need your desktop on)
Introduction to wireless network card
Definition of wireless network card The so-called wireless network, is the use of radio waves as a medium of information transmission constitute a wireless local area network (WLAN), and the use of wired networks is very similar, the biggest difference lies in the transmission medium of different, using radio technology to replace the network cable, can be and wired network backup, but unfortunately, only a little bit more than a few minutes. Instead of wires, it can be used as a backup for wired networks, but unfortunately the speed is too slow.
The wireless card is the terminal wireless network equipment, is a wireless LAN wireless coverage through the wireless connection network for Internet use of wireless terminal equipment. Specifically speaking, the wireless card is to make your computer can use wireless to access the Internet a device, but with a wireless card also need a wireless network can be connected, if you have a wireless router or wireless AP (AccessPoint wireless access point) coverage at home or location, you can through the wireless card to connect wirelessly to the wireless network can be online.
The working principle of the wireless card is microwave radio frequency technology, laptop has WIFI, GPRS, CDMA and other wireless data transmission modes to access the Internet, the latter two by China Mobile and China Telecom (China Unicom will be CDMA sold to China Telecom) to realize the former Telecom or Netcom have participated, but most of them are mainly their own access to the Internet with WIFI base stations (in fact, it is). WIFI router, etc.) and laptop WIFI card. To say that the basic concept is almost the same, through the wireless form of data transmission. Wireless Internet access follows the 802.1q standard, through wireless transmission, there is a wireless access point to send a signal, with a wireless network card to receive and send data.
In accordance with the IEEE802.11 protocol, the wireless LAN card is divided into a media access control (MAC) layer and a physical layer (PHYLayer). Between the two, a Media Access Control-Physical (MAC-PHY) sublayer (Sublayers) is also defined.The MAC layer provides the interface between the host and the physical layer, and manages the external memory, which corresponds to the NIC unit of the wireless card hardware.
The physical layer specifically implements the reception and transmission of radio signals, which corresponds to the spread spectrum communicator in the wireless NIC hardware. The physical layer provides the idle channel estimation CCA information to the MAC layer in order to decide whether the signal can be sent or not, and implements the CCSMA/CA protocol of the wireless network through the control of the MAC layer, while the MAC-PHY sublayer mainly implements the packing and unpacking of the data and puts the necessary control information at the front of the packet.
The IEEE802.11 protocol states that the physical layer must have at least one method of providing an estimated CCA signal for the idle channel. The wireless NIC works as follows: when the physical layer receives the signal and confirms that there is no error and submits it to the MAC-PHY sub-layer, after unpacking the data and handing it over to the MAC layer, it then determines whether it is the data sent to this NIC, and if it is, then it is handed over, or else it is discarded.
If the physical layer receives an error in the signal sent to this NIC, it needs to notify the sender to retransmit this packet information. When the NIC has data to send, it first determines whether the channel is free. If empty, randomly back off for a period of time and then send; otherwise, do not send. As the network card for time-division duplex work, so, send can not receive, receive can not send.
Wireless NIC standard:
1.IEEE802.11a: using 5GHz band, transmission speed 54Mbps, incompatible with 802.11b
2.IEEE802.11b: using 2.4GHz band, transmission speed 11Mbps
3.IEEE802.11g: Uses 2.4GHz band, transmission speed 54Mbps, backward compatible with 802.11b
4.IEEE802.11n (Draft2.0): Used on Intel’s new Centrino 2 laptops and high-end routes, backward compatible, transmission speed 300Mbps.