What term describes unwanted signals that interfere with a communication system?

The term that accurately describes unwanted signals that interfere with a communication system is "Noise." In the context of telecommunications and signal processing, noise refers to any unwanted electrical signals that disrupt or distort the intended signal being transmitted. This can include a variety of disturbances, from random electrical interference to background sounds that obscure audio signals.

Understanding noise is crucial because it directly affects the quality and clarity of communication. It can come from various sources, including electronic devices, environmental factors, or even within the system itself. Effective communication relies on differentiating between the intended signals and this undesired interference.

Feedback refers to a process where the output of a system loops back into the input, which is not necessarily related to interference. Interference is a broader term that could encompass various disruptive elements, including noise, but does not specifically denote unwanted signals. Signal loss typically refers to a reduction in the strength of the intended signal as it travels over a medium, which is a different concept than the interference caused by noise.