"256 KB" refers to a unit of digital information storage, specifically 256 kilobytes. A kilobyte is equal to 1,024 bytes, so 256 KB is 256,000 bytes of data. This amount of storage can hold simple text files, small images, or a few seconds of audio. In the context of computer memory, 256 KB was once a common size for RAM in early personal computers. Today, it is considered very small, as modern devices often have gigabytes (GB) or terabytes (TB) of storage, which are thousands of times larger than 256 KB.