Disadvantages of wireless network adapter PK Wireless LAN

Wireless network interfaces have many advantages. They do not need to be covered by wireless network signals. Some people say that wireless network interfaces do not need Wireless LAN to access the Internet. Can this happen? Next we will analyze the disadvantages of wireless network interfaces compared with wireless LAN.

One is wireless WAN and the other is wireless LAN. From the very beginning, they were different from each other. Because of this, the wireless network card is not as good as the wireless LAN in many aspects, and naturally cannot really replace him.

1) slow speed of wireless network interfaces:

Currently, the fastest browsing access speed provided by the wireless network adapter is only 80 K to 100 K. This speed is incomparable with the transmission speed in the wireless LAN, even the 11 m standard that has been eliminated is much higher than this speed, let alone 54M and ipvm. Therefore, the slow speed of the wireless network adapter is his biggest fatal injury, in this 80 K to k speed range, I am afraid the user can only look at the web page, chat QQ. Although 3G can greatly increase the speed, it is still unknown when it will be launched in China.

2) wireless network interfaces are expensive:

Let's talk about the cost of the hardware for wireless network interfaces. In general, Beijing ADSL monthly package only costs 120 yuan to enjoy the speed of K, and to use GPRS and CDMA to access the Internet, your payment is expensive, because China Telecom does not provide the monthly subscription function in many regions, we have to pay traffic fees for every page and program downloaded. Of course, China Telecom has launched some monthly subscription packages in some regions, but they are not ideal. In addition, the wireless network card itself also requires a certain amount of fees. This results in a higher overall cost for accessing the Internet through the wireless network card.

3) the wireless network adapter cannot be shared:

For wireless lan wlan, we can add multiple NICs or allow one AP to access multiple clients to achieve the Internet access of multiple computers. In addition, in critical cases, WLAN can be quickly converted into a traditional wired LAN to make up for sharing functions. However, wireless network interfaces do not provide this function. One computer can only use one wireless network interface card. In addition, no one is willing to share it. After all, the total bandwidth speed is too small, and more people are shared, the slower the browsing speed.

4) inflexible application of wireless network interfaces:

On the one hand, because the network cannot be shared, on the other hand, because of the slow speed, this causes the wireless network interface card to be unable to carry out more services and applications, it is estimated that no one is willing to build a WWW website or FTP server with their own laptop and wireless network card. However, the use of WLAN wireless LAN does not have this restriction. Although the internal network transmission speed is not as high as that of traditional wired networks in general, with the development of technology, the gap is getting smaller and smaller, in addition, the speed of ipvm and 54M can also cope with common services and applications.

TIPS:

The wireless network interface card still needs to be dialed before accessing the internet, so it cannot automatically connect to and access the network as long as the wireless router is set up as in the wireless LAN. The operation is inconvenient.

5) the wireless network interface card completely loses various LAN functions:

Because the wireless network interface card is used to connect a laptop to the internet through SIM or UIM card, the function provided by the wireless network card is to connect the two computers in the home to the internet, it is impossible to share some files or applications over a LAN. Therefore, the wireless network interface card completely loses all kinds of LAN functions, and we will not be able to share applications, files, and printers.

The above five points need to be solved by means of wireless network interfaces. If there is no breakthrough in these four aspects, the wireless LAN will continue to exist.