What is a runtime environment?

If you’re a developer, you already know that node.js is a runtime environment and how it was developed by binding C++ and V8 engine. But how do we visualize it? Being from non-tech background I kept thinking what is actually a runtime environment?, I had this vague idea seeing the name, but I searched about it, because I wanted to have the clear picture. • Basically To execute a code you need collections of software and hardware components. Why? Because software tells you how to execute that code and hardware actually does that execution. • The Runtime Environment is just abstraction layer between code, Os and Hardware components which provides essential services and allows programs to run consistently across different platforms i.e runtime gives us pre-written code that acts as a functionality so we don’t have to deal with OS or hardware directly! • Without those services we would actually have to manage memory system, handle the CPU instructions, andd deal with the networking protoco