A log (record) is a systematic and organized entry of information that documents events, activities, or observations over time. Logs are commonly used in various fields, such as computing, medicine, and transportation, to track performance, monitor processes, or maintain safety records. Each entry typically includes a timestamp, description, and relevant details. Logs can serve multiple purposes, including troubleshooting issues, analyzing trends, and ensuring compliance with regulations. For example, a server log records requests made to a web server, helping administrators identify problems or optimize performance. Overall, logs are essential tools for maintaining accurate records and improving efficiency.