> Containers don't (generally) run in their own operating system Right, but containerized application can't (ideally) talk to other applications on the same ma

> Containers don't (generally) run in their own operating system Right, but containerized application can't (ideally) talk to other applications on the same machine, that's how it's similar to a single-process OS with a single app running. Of course there are details like a single application may still contain multiple processes from OS standpoint, but the overall comparison stands. > It's less similar to a bare-metal MS DOS application than it is a glorified chroot jail These two cases are similar enough from containerized application standpoint (only OS services are different than those of MS DOS).