does anyone have more info 'bout how wifi works?

Answer 1

Wifi is just local wireless networks.

Answer 2

Yup, lots of info. Same as I gave you two days ago when you asked the same question

It is a wireless signal that takes the place of the ethernet wire. It uses a similar frequency as your wireless home phone to send the network signal to a base station connected to your internet provider of a another computer that passes the network to the internet.

IAssuming you want more specifics for your home use, there is a card or device built into some computers or plugged in which acts as a transmitter and receiver of radio signals containing the same info that is in a conmputer network wire (which is what connects to the internet). In order for the computer to use this wireless network, it needs another device to receive/transmit. That device could be another computer, a wireless base station (called an access point) which plugs into the wired network, or a wireless router, which does other things like keep your internet connected or provide local TCPIP address for a local network of many computers.

To keep your computer network different from others in the neighborhood, a network ID or SSID is used. That must be entered or selcted when your computer discovers a wireless network.

In addition, you can secure your network by using a security code encryption of the signal. That keep your neighbors off your network and keeps advanced users from detecting and reading your network information, which may contain passwords and account information.