Final answer:
Network devices are hardware components that enable the connection and communication of electronic devices across a network, such as routers, switches, and modems. A wireless WiFi router is an example that uses microwaves to connect devices like smartphones and laptops wirelessly.
Step-by-step explanation:
Network devices are hardware components that connect computers, printers, faxes, phones, and other electronic devices to a network. The primary purpose of these devices is to facilitate communication and collaboration between equipment on a local level or across wide area networks. Examples of network devices include routers, switches, hubs, and modems. One common network device that users interact with daily is a wireless WiFi router, which uses microwaves to create a wireless signal allowing devices like cell phones and laptops to connect to the internet without the need for physical cables.
These devices operate by exchanging data over the internet through a cable or other connection types. To ensure compatibility across different manufacturers, WiFi routers follow specific standards that govern the modulation and demodulation of microwaves, thus making it possible for various devices to communicate effectively. Network devices are integral to modern communication networks, carrying messages and data to other individuals and groups, which is vital for both personal and professional interactions in today's digital world.