Hardware should be distinguished if you want to use a wireless network card to access the Internet

Many of my friends want to use the wireless network card that comes with their laptops to access the Internet. However, for unrestricted wireless Internet access, it cannot be "unrestricted ". If you use your own wireless network card to access the Internet, you will not be able to access the Internet if you leave the region covered by your wireless signal, and if you are in an encrypted wireless signal area, obviously, you cannot easily use the wireless network card that comes with your laptop to access the Internet. Therefore, we need to know the hardware for wireless Internet access.

First, let's take a look at the differences between the wireless network card and the wireless network card:

Wireless Network Adapter:

The function and function of a wireless network adapter are the same as that of a common computer network adapter. It is used to connect to a LAN. It is only a device for sending and receiving signals. It can be connected to the Internet only when the egress of the Internet is found. All wireless network adapters can only be confined to the configured Wireless LAN.

A wireless network card is a network card that uses wireless signals to connect to a network card without a wired connection. Different interfaces are used for wireless NICs, including PCMCIA wireless NICs, PCI wireless NICs, MiniPCI wireless NICs, USB wireless NICs, and CF/SD wireless NICs.

In terms of speed, the mainstream speed of wireless network interfaces is 54M and 108 M, which has a great relationship with the environment.

54 Mbps: The WLAN transmission speed is generally between 16 and 30 Mbps, which is converted to MB, that is, the transmission speed is about 2 mb-4mb per second. The median value is 3 MB. It takes about 35 seconds to transfer a MB file. It takes at least 4 minutes to transfer a 1 GB file.

108 Mbps: The WLAN transmission speed is generally between 24-50 Mbps, which is converted to MB, that is, the transmission speed is about 3 mb-6mb per second. The median value is 4.5 MB. It takes about 25 seconds to transfer a MB file. To transfer a 1 GB file, it takes at least two minutes and a half.

If a wireless network adapter accesses the internet, it uses wireless signals to connect to the network adapter without a wired connection. Different interfaces are used for wireless NICs, including PCMCIA wireless NICs, PCI wireless NICs, MiniPCI wireless NICs, USB wireless NICs, and CF/SD wireless NICs.

Wireless Network Adapter:

The function and function of the wireless network adapter are equivalent to a wired modem, which is also known as "cat ". It can use the SIM card of a mobile phone to connect to the Internet Anywhere with wireless phone signals.

The function and function of the wireless network adapter is like a wireless MODEM ). Common interfaces include PCMCIA, USB, CF/SD, etc.
In terms of speed, wireless network interfaces are divided into GPRS and CDMA. Its speed will also be affected by various obstacles such as walls and other wireless signals such as mobile phones and microwave ovens.

Actual GPRS speed: basically the same as the Modem speed of 56 kbps.

Actual CDMA speed: 153.6 Kbps, about four times of home telephone lines

It depends on the method you want to use to access the Internet:

1. If you want to connect to the internet anytime, anywhere, you need to purchase a wireless network card at a price of more than-1.) You also need to go to the mobile phone or connect to the business office to buy a capital card, that is, a mobile phone card ), just activate the internet service. There are a lot of options for the specific Internet cost, one word: Expensive.
 
2. If you want to use the wireless network card that comes with your laptop to access the Internet, you need to enable the Internet service at home, such as ADSL), and then buy a device for wireless transmission, wireless routing or Wireless AP 300 or 400 can be done). Your laptop can access the Internet wirelessly within the range of wireless signals. Generally, a home wireless router can cover one home, when you leave the house, you cannot access the Internet wirelessly. In short, as long as there is a Wireless Transmitting Device nearby, your wireless network card can receive wireless signals, and others are not encrypted. Generally, you can access the Internet wirelessly.