Name a tech company, any tech company, and they’re investing in containers. Google, of course. IBM, yes. Microsoft, check. But just because containers are extremely popular, that doesn’t mean virtual machines are out of date. They’re not.

Yes, containers can enable your company to pack a lot more applications into a single physical server than a virtual machine (VM) can. Container technologies, such as Docker, beat VMs at this part of the cloud or data-center game.

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