OpenStack

vs

QEMU

OpenFaaS makes it simple to deploy both functions and existing code to Kubernetes. With OpenFaaS developers can deploy their applications and serveless functions to their very own scalable, fault-tolerant event-driven serverless platform powered by Docker and Kubernetes.

A Platform-as-a-Service (PaaS) for cloud computing provided by Google. All applications hosted with Google App Engine is housed and managed in the same data centers that Google use for their product line. Google App Engine sandbox each individual instance and run them across multiple servers to achieve maximum uptime and fault tolerance.

With DigitalOcean App Platform you can build, deploy, and scale apps quickly using a simple, fully managed solution. Deploy code by simply pointing to a GitHub repo and let App Platform do the heavy lifting of managing the infrastructure, app runtimes and dependencies. 

With CrossOver you can run Microsoft Windows software on Linux, macOS, and Chrome OS. CrossOver creates a Microsoft Windows compatibility layer making it possible to run games and software only available for Windows. CrossOver is developed by CodeWeavers and based on free and open-source compatibility layer Wine.

Windows Sandbox is a virtual machine application that lets you quickly spin up a virtual clean OS imaged from your system's current state so that you can test programs or files in a secure environment that's isolated from your main system.

With Parallels Desktop you can run several other operating systems on your PC simultaneously. The software provides hardware virtualization for Macintosh computers with Intel processors. With ongoing support for DirectX and OpenGL, many popular games and game engines are supported within Parallels Desktop allowing people using make to make use of Microsoft Windows related products.