Docker: Accelerated Container Application Development

Docker is a platform for developing shipping and running applications in containers enabling developers to package applications with all their dependencies into standardized units for consistent deployment across environments. Docker containers are lightweight and share the host OS kernel making them more efficient than traditional virtual machines. Docker Hub provides a registry of public container images while Docker Desktop simplifies running containers on developer machines. Containerization has become essential for microservices architectures and CI/CD pipelines in modern software development.