Low latency refers to the minimal delay between a user's action and the system's response. In technology, this is crucial for applications like online gaming, video conferencing, and financial trading, where even a slight delay can impact performance and user experience. Achieving low latency often involves optimizing network connections and using faster processing hardware. Technologies such as 5G networks and edge computing help reduce the time it takes for data to travel, ensuring that information is processed and delivered quickly, which is essential for real-time applications.