Final answer:
The device in question is a wireless WiFi router, which connects wireless devices, allows access to wired devices, and establishes a broadband internet connection to the ISP. It operates using microwaves within the 2.4 GHz to 5.0 GHz range and conforms to WiFi standards for device compatibility.
Step-by-step explanation:
The device used to interconnect wireless networking devices, give access to wired devices, and establish the broadband internet connection to the ISP is a wireless WiFi router. This device not only allows for the exchange of data over the Internet through a cable or another connection but also uses microwaves to wirelessly communicate with devices like cell phones and computers. The microwaves used by WiFi routers generally operate within the 2.4 GHz to 5.0 GHz range.
The device you are asking about is also responsible for modulating and analyzing microwaves to ensure interoperability between different manufacturers' routers and devices, which is part of the WiFi standards. As technology progressed, especially with the rise of the internet in the 1990s, broadband connections became more common, utilizing cable television lines and dedicated lines for better speed and reliability. This evolution led to the widespread use of routers in home networks and public spaces for convenient internet access.