What describes a device's limited range of frequencies in which it can successfully operate?

The concept of bandwidth refers to the limited range of frequencies that a device can effectively handle and transmit. In the context of audio and video systems, bandwidth determines how much data can be transferred over a medium within a certain frequency range. A device's bandwidth can impact the quality of the signal it processes; for instance, if the bandwidth is too narrow, some frequency components of the audio or video may be lost, resulting in degraded performance or lower fidelity.

In comparison, throughput relates to the actual rate of data transfer achieved by a device, which may be influenced by numerous factors beyond just frequency range. Latency measures the delay in processing data, often affecting how synchronized audio and video are but is not directly tied to frequency ranges. Amplification, on the other hand, refers to increasing the power of a signal but does not specifically address the frequency range in which a device can effectively operate.

Therefore, bandwidth is the term that accurately describes a device's operational frequency limits, making it the correct answer.