Judging from the support characteristics of Linux system for hardware devices, the support for sound cards is very poor. But now there are two drivers that can make up for the lack of Linux.
One is OSS (Open Audio System) and the other is alsa (Advanced Linux Audio Architecture). OSS is a commercial sound card driver, which needs to be purchased. Otherwise, you can only use it for 240 minutes for free after each boot. Alsa is free software and can be used for free.
Sudoapt-getinstallbcmwl-kernel-source # Broadcom 802.11Linux sta wireless driver.
sudo apt-getinstallbroadcom-sta-common
sudo apt-getinstallbroadcom-sta-source
Sudoapt-getinstallb43-fwcutter # Broadcom43xx firmware extraction tool
Sudoapt-getinstallrmware-b43-installer
Extended data:
The function of wireless network card is the same as that of ordinary computer network card, which is used to connect local area network. It's just a device for receiving and sending signals. It can only connect to the Internet if it finds an Internet exit. All wireless network cards can only be limited within the scope of distributed wireless LAN. Wireless network card is a kind of network card that makes wired connection unnecessary by using wireless signals.
Wireless network cards can be distinguished according to different interface types.
The first is USB wireless network card, which is the most common at present;
The second is the PCI interface wireless network card of desktop computer;
Third, the wireless network card with PCMCIA interface for notebook computers; Fourth, the notebook computer has a built-in Mini-PCI wireless network card.
Baidu encyclopedia-wireless network card