You may have to enter a password or WEP Key. You can find this on a card that came with the router. Or on the back of the router.
A modem connects your computer to the Internet. A router takes the Internet signal and splits it up and distributes it to other computers on your network. There are two types of routers, wired and wireless. A wired modem router uses a cat5 cable to connect to the modem and to connect to each computer on the network. A wireless router uses wires to connect to the modem but connects to each computer on the network without wires.
To connect computer to a network you need a network adapter, a broadband modem or a mobile modem. Two main types of connections are corded and cordless.Corded connections use an Ethernet wire (Ethernet network adapters) or a cable TV wire (broadband modems).Cordless connections use a WiFi network signal (Wireless network adapters) or a GSM/EDGE/UMTS mobile signal (mobile modems).
You can transmit video wirelessly from a camera by using a wireless video transmitter that sends the video signal to a receiver connected to a display device, such as a TV or computer.
Wireless routers are required to have a wireless network connection. The stronger the wireless signal the further the signal will reach. Although the network can be seen by others within it's signal range, for security reasons your network cannot be accessed without a network key. Specifically a N rated wireless router has a powerful signal. G routers are much less powerful. For any router to work you need to connect a wireless receiver to the computer you want on the network.
hub
A prepay phone can connect to a wifi signal as long as it has a wifi receiver and there is an available wifi network within close proximity to the phone.
for laptop, it will automatically search for the signal and connect. for computer you will need to connect the wire the computer and to the router
multiplexer is a device that add two or more signal in a single signal in networking
Often referred to as a "wi-fi" card, a NIC or "network interface card" is used to intercept signal output from another device such as a router. Most modern laptops carry an 802.11 card.
Category 5e is a good type of network cable for a computer. They have a high signal-to-noise ratio.
Wireless computer monitors are powered through standard wall outlets. Only the video input signal is transmitted wirelessly.
To unlock the Wi-Fi signal on your Android smartphone, go to the "Settings" app and select "Network & internet" or "Connections." Tap on "Wi-Fi," then find and select the network you want to connect to. If required, enter the password to unlock the Wi-Fi signal, and tap "Connect." Once connected, you'll have access to the network.