Run-Time Environment
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A Run-Time Environment is an execution model that provides the necessary infrastructure for executing a program or application during the run-time phase.
- Context:
- It can manage the allocation of resources, such as memory and processing power, and provide services like input/output operations, debugging, and error handling.
- It can be a component of any programming language or software platform.
- It can be responsible for managing the execution of programs, including memory allocation, garbage collection, and thread management.
- It can range from being language-specific, such as the Java Virtual Machine (JVM) for Java or the Common Language Runtime (CLR) for .NET languages, to being more general-purpose, like the Operating System (OS) itself.
- It can be designed for specific purposes, such as the browser environment for executing JavaScript code or the server-side environment for running web applications.
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- Example(s):
- Node.js Runtime Environment: A JavaScript run-time environment that allows developers to execute JavaScript code outside of a web browser, enabling server-side scripting and the development of scalable network applications.
- Java Virtual Machine (JVM): A run-time environment for executing Java bytecode, providing cross-platform compatibility and managing memory allocation and garbage collection.
- Python interpreter: A run-time environment that executes Python code, managing memory, handling input/output operations, and providing access to libraries and modules.
- Common Language Runtime (CLR): A run-time environment for executing code written in various .NET languages, such as C#, Visual Basic .NET, and F#, providing services like memory management, security, and exception handling.
- Browser environment: A run-time environment for executing JavaScript code within a web browser, providing access to browser-specific APIs and the Document Object Model (DOM).
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- Counter-Example(s):
- Integrated Development Environment (IDE): While an IDE provides a set of tools for developing, testing, and debugging code, it is not a run-time environment itself. Instead, it interacts with the appropriate run-time environment for the language or platform being used.
- Compiler: A compiler is a program that translates source code written in a high-level programming language into a lower-level language, such as assembly or machine code. It is not a run-time environment, as it operates before the run-time phase.
- See: Run Time (Program Lifecycle Phase), Execution Model, Virtual Machine, Interpreter, Compiler, Operating System.
References
2017
- (Wikipedia, 2017) ⇒ https://en.wikipedia.org/wiki/Runtime_system Retrieved:2017-5-16.
- A runtime system, also called run-time system, primarily implements portions of an execution model. This is in contrast to the runtime lifecycle phase of a program, during which the runtime system is in operation. Most languages have some form of runtime system, which implements control over the order in which work that was specified in terms of the language gets performed. Over the years, the meaning of the term 'runtime system' has been expanded to include nearly any behaviors that are dynamically determined during execution.