Containers: a Primer
At a high level, a container is a slice of an operating system running on a server (or personal computer) which runs an app. By preference one app per container.
Containers are generally smaller and more efficient than running a whole OS running on a virtual machine on top of a hypervisor. This is why apps in containers should start promptly.
Apps running in a containers are called containerized apps.
Famous container technologies includeand .