<h1 id="asynchronous">Asynchronous<a aria-hidden="true" class="anchor-heading icon-link" href="#asynchronous"></a></h1>
<p>Caller sends a request and does other work while the receiver responds.</p>
<h2 id="how-to-know-when-request-is-ready">How to know when request is ready?<a aria-hidden="true" class="anchor-heading icon-link" href="#how-to-know-when-request-is-ready"></a></h2>
<ul>
<li>Polling</li>
<li>Pushing</li>
<li>A separate <a href="/cs/notes/1xa8t3px1evt2opr4d0g9qk">Synchronous</a> thread that is blocked.</li>
</ul>
<h2 id="example">Example<a aria-hidden="true" class="anchor-heading icon-link" href="#example"></a></h2>
<ul>
<li>File read
<ul>
<li>A secondary thread is spun-up to read this file</li>
<li>Main thread still in CPU, unblocked.</li>
</ul>
</li>
<li>Email</li>
</ul>
<hr>
<strong>Backlinks</strong>
<ul>
<li><a href="/cs/notes/k6j3lplu090syykverllklm">NodeJS (cs)</a></li>
<li><a href="/cs/notes/2hjk7owio9y55tp2seqok8j">Modules (cs)</a></li>
</ul>

Asynchronous



These notes are arranged into the below topics:

- AI (Sorry this is on the top, list is alphabetic)
- [[arch]]
- Data
- Execution
- Languages
- Semantics
- [[paradigm]]
- Philosophy
- Dev
- Tools
- Type Theory

## References

- Hierarchy inpiration - [Map of Computer Science](https://www.flickr.com/photos/95869671@N08/36231833334/in/photostream/lightbox/)