What Is a Modem? Understanding Internet Connection Hardware #1632854 (License: Personal Use)

This illustration depicts a typical external DSL or cable modem, featuring four LED indicators-two red and two brown (often amber)-that signal power, internet connection, upstream/downstream activity, and device status. The sleek gray casing and labeled “MODEM” text identify it as a consumer-grade networking device used to convert digital signals from a computer into analog signals for transmission over telephone or coaxial lines. Such devices were foundational in early broadband adoption and remain relevant in many home setups today.

Used on educational tech pages, ISP support articles, or beginner networking guides to visually explain modem hardware and LED status meanings; matches user intent to understand home internet equipment or troubleshoot connectivity.