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Thread ↔ sequence of Instructions (where Machine Code) executed in CPU

Coroutine​

(process) to write/run Async Process

Background Thread​

Thread run separate from main Execution Thread of App

References​

  1. Thread Pool ↔ fixed number of Threads availabe to run tasks with Concurrency

  2. Execution Thread ↔ Part of EC currently run in CPU Thread

  3. Background Thread ↔ Thread run separate from main Execution Thread of App

  4. Single-Threaded ↔ All ops in Node.js run on single Thread

  5. Web Workers API ↔ Web API to run Script in Background Thread separate Thread of main App for better perf