Analog Communication
Analog communication is a method of transmitting information using continuous signals that vary in amplitude, frequency, or phase to represent data. It involves techniques like amplitude modulation (AM), frequency modulation (FM), and phase modulation to encode analog signals such as voice, music, or video onto carrier waves for transmission over channels like radio, telephone lines, or television. This contrasts with digital communication, which uses discrete signals (bits) to represent information.
Developers should learn analog communication when working on embedded systems, telecommunications, signal processing, or IoT devices that interface with real-world analog sensors (e.g., temperature, sound, light). It's essential for understanding legacy systems, designing analog-to-digital converters (ADCs), and troubleshooting issues in wireless communication, audio engineering, or broadcast technologies where analog signals are still prevalent or used as an intermediate step.