Information capacity refers to the maximum amount of data that can be stored, processed, or transmitted by a system. This concept is crucial in fields like telecommunications and computer science, where it determines how efficiently information can be handled. For example, the Shannon-Hartley theorem quantifies the capacity of a communication channel based on its bandwidth and noise levels. In practical terms, information capacity affects everyday technology, such as smartphones and internet connections. Higher capacity allows for faster downloads, smoother streaming, and better overall performance. Understanding this concept helps consumers make informed choices about their devices and services.