Child Processes

Summary

Node's ability to spawn separate OS processes — to run shell commands, other scripts, or CPU-heavy work — without blocking the main event loop.

• 1Use `child_process.exec` to run a shell command from a Node script.
• 2Learn the difference between `spawn`, `exec`, and `fork`.
• 3Understand when to offload CPU-intensive work to a child process instead of blocking the event loop.