Network Devices – Modem

🔌 Network Device: Modem A Modem (Modulator-Demodulator) is a device that operates at the Physical Layer of the OSI model. It is used to convert digital data to analog signals and vice versa, enabling digital devices to communicate over analog communication channels like telephone lines. 🔹 What is a Modem? A Modem is a device that modulates digital data from a computer into an analog signal for transmission over telephone lines (or similar media) and demodulates analog signals back into digital data at the receiving end. This is crucial for Internet access, particularly in older or rural areas where traditional broadband services (like fiber or cable) are unavailable. ...

May 3, 2025 · 3 min · Rohan