A System Log is a record that keeps track of events and activities occurring within a computer system or network. It captures important information such as errors, warnings, and system messages, which can help administrators monitor performance and troubleshoot issues. System logs are essential for maintaining the health and security of systems. These logs can be generated by various components, including the operating system, applications, and hardware devices. By analyzing the data in a System Log, users can identify patterns, detect unauthorized access, and ensure compliance with regulations. Regularly reviewing these logs is a best practice for effective system management.