Final answer:
A router is a device that enables wireless connection to the Internet through microwaves and facilitates WiFi.
Step-by-step explanation:
A router is a device that exchanges data over the Internet through a cable or another connection, and uses microwaves to exchange the data wirelessly with devices such as cell phones and computers. The use of a router enables devices to connect wirelessly to the Internet, providing WiFi. WiFi refers to the standards followed in modulating and analyzing the microwaves so that wireless routers and devices from different manufacturers work compatibly with one another.
The effect of using a wireless WiFi router is to enable devices such as cell phones and computers to connect to the Internet wirelessly using microwaves. These microwaves operate in a frequency range of 2.4 GHz to 5.0 GHz, ensuring the transference of data in binary form (zeros and ones) across networks. WiFi standards facilitate compatibility across devices from different manufacturers, making wireless communication seamless.