Buffer

A buffer is a temporary storage area that holds data before it is processed or transferred elsewhere. In computing, it allows for smooth data flow between devices or applications that may operate at different speeds. For example, when streaming a video, a buffer preloads a portion of the video to prevent interruptions or lag. In a broader context, a buffer can also refer to anything that helps absorb or mitigate the impact of fluctuations, such as financial reserves that protect against sudden expenses or changes in the market.