What does the capacity of a storage device refer to?

The capacity of a storage device specifically refers to the amount of information or data that it can store. This measurement is typically expressed in bytes, with common denominations including kilobytes (KB), megabytes (MB), gigabytes (GB), and terabytes (TB). Understanding the capacity is crucial when choosing a storage solution, as it influences how much data, such as files, applications, and media, can be saved and managed on that device.

In contrast, the other options represent different characteristics of storage devices. The speed of data transfer pertains to how quickly data can be read from or written to the device, not its capacity. The physical size of a device relates to its dimensions and form factor, which do not determine how much data it can hold. Lastly, the number of devices it can connect to does not influence the storage capacity but rather refers to networking or connectivity capability.