Node JS

Driven Architecture:

- Node.js is built on an event-driven, non-blocking I/O model, allowing it to handle multiple connections simultaneously without getting blocked.

V8 Engine:

- Node.js uses Google's V8 JavaScript engine, which compiles JavaScript into machine code for faster execution.

Single Threaded:

- Node.js operates on a single-threaded event loop, which means it can handle many connections concurrently without spawning new threads for each connection. This architecture reduces overhead and makes it highly scalable.

Asynchronous I/O:

- Node.js uses asynchronous I/O operations, allowing it to handle I/O-heavy tasks efficiently without blocking the event loop. This asynchronous nature is key to Node.js's performance and scalability.

Modules:

- Node.js has a module system that allows developers to modularize their code into reusable components. CommonJS modules are used, and the require() function is used to import modules.

Package Management:

- Node.js comes with npm (Node Package Manager) for package management. npm allows developers to easily install, manage, and publish packages, making it easy to integrate third-party libraries into Node.js applications.

Core Modules:

- Node.js provides a set of core modules for common tasks such as file system operations, networking, and HTTP handling. These core modules are optimized for performance and are part of the Node.js runtime.

Community and Ecosystem:

- Node.js has a vibrant and active community, which has contributed to a rich ecosystem of libraries, frameworks, and tools. This ecosystem enables developers to build a wide range of applications using Node.js.

Scalability:

- Due to its non-blocking, event-driven architecture, Node.js is highly scalable and can handle thousands of concurrent connections with low latency.

Overall, Node.js's architecture is optimized for building scalable, high-performance applications, especially those requiring real-time communication and I/O-intensive operations.