Key Parts of Node.js Architecture

1. V8 JavaScript Engine:

   • This engine was made by Google. It turns JavaScript into machine code, which helps it run much faster. Node.js uses V8 to make sure JavaScript runs about 2 to 3 times quicker than regular methods.

2. Event Loop:

   • The event loop is the heart of Node.js. It helps the server handle many requests at the same time. This is really important for tasks that need a lot of input and output (I/O). Because of the event loop, Node.js can manage thousands of connections all at once.

3. Libuv:

   • Libuv is a library that helps with I/O tasks. It makes sure Node.js can work well on different operating systems. It helps manage the event loop and a group of worker threads, allowing Node.js to do tasks easily and quickly.

4. Callback Functions:

   • These are important for Node.js. They are used to handle things once tasks are finished. This makes it easier to organize tasks that happen at different times.

5. Node.js APIs:

   • Node.js comes with built-in tools for tasks like working with files and networking. These tools make it easier to build applications without needing extra modules.

By knowing these parts, you can make Node.js applications work better and handle more users at the same time.