Log types refer to the various categories of logs generated by systems, applications, or devices to record events and activities. Common log types include system logs, which track operating system events; application logs, which monitor software performance; and security logs, which capture security-related activities. Each log type serves a specific purpose and helps in troubleshooting, monitoring, and auditing. Another important log type is transaction logs, which record changes made to a database, ensuring data integrity and recovery. Additionally, event logs provide a chronological record of significant occurrences within a system. Understanding these log types is essential for effective system management and analysis.