An Event Log is a record-keeping tool used in computer systems and applications to track events and activities. It captures important information such as timestamps, user actions, system errors, and warnings. This data helps administrators monitor system performance, troubleshoot issues, and maintain security. Event logs are essential for compliance and auditing purposes, as they provide a detailed history of system interactions. They can be analyzed to identify patterns or anomalies, aiding in proactive maintenance. Common types of event logs include Windows Event Logs, Syslog, and Application Logs, each serving specific functions within their respective environments.