# How do buffers work?

**URL:** <https://forum.makecode.com/t/how-do-buffers-work/44161>\
**Category:** Arcade\
**Tags:** game, demo\
**Created:** [May 25, 2026, 9:39pm UTC](https://forum.makecode.com/t/how-do-buffers-work/44161 "2026-05-25T21:39:41Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![AlexK](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/alexk/32/33339_2.png) [@AlexK](https://forum.makecode.com/u/AlexK)\
**Post date:** [May 25, 2026, 9:44pm UTC](https://forum.makecode.com/t/how-do-buffers-work/44161/2 "2026-05-25T21:44:52Z")

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Buffers in MakeCode provide a way to work with large amounts of data.

I use them in projects like [What’s My Word](https://forum.makecode.com/t/introducing-whats-my-word/11998) and [Countdown Solo](https://forum.makecode.com/t/alexks-dev-blog/18443/25) to store the word lists. I’m also working on an implementation of the [Z-Machine](https://en.wikipedia.org/wiki/Z-machine) to play games like Zork, where I’m using buffers to manipulate the system’s main memory.

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