random noise

In electronics, "random noise" refers to unwanted signals that interfere with desired information. These signals are unpredictable and can manifest as static in radio or "snow" on television. A specific type, "random noise," is an electric or acoustic signal containing equal amounts of all frequencies. Another form, "thermal noise," arises from the agitation of electrons within circuits and tubes.123

Digital systems are advantageous because their signals can be verified and errors corrected, unlike analog signals that can be corrupted by noise. This is crucial for complex electronic systems, especially those operating in noisy environments like automobiles, where digital operation ensures immunity from interference.4