The firewall of the computer is provided by the system, which is a measure to ensure the safety of users surfing the Internet. It can be hardware or software.

Hardware firewalls

Hardware firewall is a kind of physical equipment, which can insert an intermediate system between the network and the Internet, erect a security barrier, and block threats and intrusions from outside through the network.

Software firewall

The firewall in the form of software can come with the system or be a third party. Tencent and 360, which are widely used in China, have the function of firewall. Users only need to select one.

Affect the speed of the computer

If it is a firewall in the form of software, it will also take up computer resources and affect the running speed of the computer. If you are very concerned about the speed of the computer, you can turn off unnecessary firewalls.