Aliasing refers to a phenomenon that occurs when a signal is sampled at a rate that is insufficient to capture its changes accurately. This can lead to distortion or misrepresentation of the original signal, often resulting in misleading visual or auditory information. In digital media, aliasing can manifest as jagged edges in images or unexpected sounds in audio recordings. To prevent aliasing, techniques such as anti-aliasing are employed. Anti-aliasing smooths out the appearance of edges in graphics or reduces unwanted noise in audio, ensuring a more accurate representation of the original content. Proper sampling rates, as defined by the Nyquist theorem, are also crucial in avoiding aliasing effects.