Wi-Fi
concept · 1997 · Digital age
The IEEE 802.11 wireless local network.
Developer: Wi-Fi Alliance.
Principles and materials it uses
- Electromagnetic waves — uses. Radio waves at 2.4 and 5 GHz.
- Packet switching — uses. Packet transmission.
Where it is used
- Radio module and antenna — is used in. A Wi-Fi module.
- Smart speaker — is used in. Wi-Fi.
- Internet of things — is used in. Wireless communication.
- Burglar alarm — is used in. Modern alarms send alerts to your phone over Wi-Fi.