data streams

A data stream is a continuous flow of information generated by sources like sensors, devices, or online activity. Instead of storing all data first, the system processes it in real-time or near-real-time as it arrives. This allows for immediate analysis, decision-making, or triggering actions. Think of it like a live news feed—new updates keep coming, and systems can respond promptly. Data streams are essential for applications like monitoring traffic, financial transactions, or social media activity, where timely insights are crucial.