Multi-Mode laptop Internet access

Using a laptop to access the Internet is not very tricky, But how should we set it if there are computers without NICs and other network devices with the Internet access function. As the internet is everywhere today, using a laptop to access the Internet in any possible place is inevitable. Maybe you have already used your laptop for wireless Internet access, but do you know there are still many ways to achieve wireless Internet access for your laptop? It is important to know a variety of laptop wireless internet access methods. For example, if you can use a wireless LAN to access the internet in the office, what method should you use to access the internet on a trip car? The following describes how to use a laptop to access the internet wirelessly:

Laptop wireless Internet access-mobile phone + Bluetooth

If the mobile phone supports GPRS or CDMA and has Bluetooth, and the laptop also has Bluetooth, we can use the mobile phone and Bluetooth to access the internet. A laptop can communicate with a mobile phone through Bluetooth, use the mobile phone as the internet gateway, and then dial the internet through GPRS or CDMA. Because the Bluetooth transmission distance can reach about 10 meters, there is no need for direction, and the transmission bandwidth can reach 1 Mbps to actually reach 100 Kbps), we can use this method to access the Internet in any place.

Laptop wireless Internet access-mobile phone + infrared

What if a laptop does not have a Bluetooth function? Mobile phones are equipped with infrared, CDMA, or GPRS, and laptops are equipped with infrared rays. The principle of using this method to access the Internet is the same as that of using mobile phones and Bluetooth. Only infrared transmission is used between laptops and mobile phones. Compared with Bluetooth transmission, infrared transmission has its own limitations. Its transmission rate can reach 115.2 Kbps, but its transmission distance is only one meter long and has a direction requirement. When using this method to access the internet, the mobile phone's infrared port must be stably aligned with the laptop's infrared port, which is suitable for relatively stable use, such as the workbench.

Laptop wireless Internet access-mobile phone + Data Cable

The use of data lines is relatively primitive, but it is helpful. The mobile phone can be connected with a data cable to avoid the directionality of Infrared Transmission, prevent the insecure channel of Bluetooth transmission, and ensure the transmission rate. The working principle of this method is basically the same as that of the previous two, that is, the laptop and mobile phone communication use data lines. The disadvantage of this method is that the data line is not easy to carry.

Wireless Internet access in laptops-GPRS or CDMA network interfaces

The above methods are mainly implemented by using a mobile phone that can access the Internet as the Internet gateway. What if there is no mobile phone that can access the Internet? We can purchase GPRS or CDMA wireless network cards to meet internet access requirements. The GPRS or CDMA wireless network adapter is actually the modem used for accessing the Internet. It is basically the same as the GPRS or CDMA module in the mobile phone. Currently, there are two main interfaces: PCMCIA and USB: GPRS or CDMA wireless network adapter, it is easy to connect to the laptop. The GPRS transmission rate can reach 115.2 Kbps, but it can actually reach 53 Kbps. The CDMA Transmission rate can reach 256 Kbps, but it can actually reach about Kbps. This wireless access to the internet is more professional and stable. Currently, GPRS and CDMA NICs are less than 1000 RMB.

Wireless LAN for laptop wireless Internet access

The above methods, whether or not mobile phones are used, are actually using GPRS or CDMA networks, that is, using the wireless data networks of China Mobile and China Unicom, both of which need to be paid monthly or paybytraffic, the transmission rate is relatively low. Using a wireless LAN to access the internet can avoid these disadvantages. Generally, laptops have wireless internet access functions. If not, you can purchase a wireless network card and insert it into your laptop to enable wireless internet access. This method allows a laptop to communicate with an internet gateway over a wireless LAN and access the internet through an internet gateway. Currently, the wireless LAN provides a variety of bandwidths, including 11 Mbps for 802.11b, 54 Mbps for 802.11a, and 54 Mbps for access to the internet. However, this method needs to be implemented in a wireless network environment, which means that if you are on a train or coach, it is difficult to use this method to access the internet, but you can use this method to surf the Internet at home, office, or airport.