What best describes a flash drive?

A flash drive is best described as a small memory storage device for a computer that utilizes flash memory. Flash memory is a type of non-volatile storage that allows the storage of data without the need for continuous power. One of the primary advantages of a flash drive is its compact size and portability, making it easy to carry and conveniently store data. Flash drives are commonly used for transferring files between computers, backing up data, and storing important documents. Their reliability and speed in reading and writing data also enhance their use as an everyday storage solution.

In contrast, the other descriptions do not accurately capture the essence of a flash drive. For example, while hard drives also serve the purpose of data storage, they are typically larger and are used for different applications, such as backing up extensive data in a fixed location. Similarly, a portable device for displaying screen content pertains more to projectors or similar devices, and a component that enhances computer graphics performance relates to graphics cards, rather than a flash drive.