A crash dump is a file that captures the memory of a computer system at the moment it crashes. This file contains important information about the state of the system, including running processes and system settings, which can help diagnose the cause of the crash. Crash dumps are often used by software developers and system administrators to troubleshoot issues and improve system stability. There are different types of crash dumps, such as full memory dumps and mini dumps. A full memory dump includes all the data in the system's memory, while a mini dump contains only essential information. Analyzing these dumps can lead to better understanding and resolution of software bugs or hardware failures.