.NET Core is an open-source, modular implementation of the .NET Framework. It can be used in a wide variety of applications and verticals, ranging from servers and data centers to apps and devices. .NET Core is supported by Microsoft on Windows, Linux and Mac OS X.
- Stackoverflow.com Wiki
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After you’ve built your .NET Core application you’ll need a place to host it so that your users can access it. In the days of classic .NET Framework, hosting was limited to Windows based servers. But now that .NET Core is cross platform, we can host our applications anywhere, right? Well, anywhere that’s running a compatible OS.
One of the most exciting aspects of .NET Core is performance. There’s been a lot of discussion about the significant advancements that have been made in ASP.NET Core performance, its status as a top contender on various TechEmpower benchmarks, and the continual advancements being made in pushing it further. However, there’s been much less discussion about some equally exciting improvements throughout the runtime and the base class libraries.