VMs include a full OS. Docker containers share the host OS kernel.
VMs are more resource intensive. Docker containers are lightweight.
Virtualization provides better isolation and resource control. Docker generally offers better performance due to lower overhead.
Virtualization provides stronger isolation, making it more secure. Docker has improved security features but relies on the host OS's security.
Virtualization: Enterprise IT environments, Data centers, Legacy application support. Docker: Microservices architecture, DevOps pipelines, Cloud-native applications.