What are USB flash disks primarily used for?

USB flash disks are primarily designed for storing data, which makes the choice of storing small amounts of data the most accurate. These devices are portable storage solutions that allow users to save, transfer, and retrieve files easily between different computers and devices. They can hold a range of data formats, including documents, photos, music, and videos, making them versatile for personal and professional use.

The other options relate to functions that are not the primary use of USB flash disks. For instance, while USB flash disks can indirectly be used to store photos, their primary function is not about capturing images. Playing video games typically requires dedicated hardware or software environments, and while some games can be stored on USB flash disks, this is not their main purpose. Accessing the internet is dependent on an internet connection and not on USB storage; although USB devices can be used for certain internet-related functions, they do not serve as a direct means of accessing the internet.