Final answer:
When data is transmitted wirelessly, the computer needs a wireless receiver to receive it. A wireless router exchanges data over the internet and uses microwaves to transmit the data wirelessly. The computer's wireless receiver is responsible for receiving and converting the transmitted microwaves back into data.
Step-by-step explanation:
When data is transmitted wirelessly, the computer needs a wireless receiver in order to receive it. For example, when using WiFi to connect to the internet, a wireless router exchanges data over the internet through a cable or another connection, and then uses microwaves to transmit the data wirelessly to devices such as cell phones and computers. The computer's wireless receiver is responsible for receiving these microwaves and converting them back into data that can be understood by the computer.