Whats a fire wall ? how does it protect the computer? how do i start the fire wall?

Question

Whats a fire wall ? how does it protect the computer? how do i start the fire wall?

Answer 1

A virus and spam blocker, it can be very annoying.

Answer 2

A firewall is simply a program or hardware device that filters the information coming through the Internet connection into your private network or computer system. If an incoming packet of information is flagged by the filters, it is not allowed through.

Basically, a firewall is a barrier to keep destructive forces away from your property. In fact, that's why its called a firewall. Its job is similar to a physical firewall that keeps a fire from spreading from one area to the next.

Answer 3

The firewall is a protective feature that prevents certain websites from being accessed.  It can be modified from the "Settings" menu on any Windows OS.