Description: A reactor is a device designed to initiate and control a nuclear reaction, allowing for the controlled release of energy. In the context of technology, the term ‘reactor’ can refer to various implementations, from software systems that handle data flows to architectures that integrate multiple components. In programming, especially in languages like Kotlin and Java, design patterns such as Reactor are used to manage asynchronicity and reactive programming, facilitating the creation of more efficient and scalable applications. Reactors allow for real-time data flow manipulation, which is essential in applications requiring high performance and quick responses to events. Additionally, in the context of log and data management, tools and systems utilize reactor principles to effectively process and analyze large volumes of information, ensuring that data is accessible and useful for decision-making.