diff --git a/glossary.md b/glossary.md
index 06ef524..edfefa8 100644
--- a/glossary.md
+++ b/glossary.md
@@ -2,7 +2,7 @@
 title: Terminology Glossary
 description: 
 published: true
-date: 2024-10-21T10:57:55.491Z
+date: 2024-10-21T11:08:45.371Z
 tags: 
 editor: markdown
 dateCreated: 2024-10-21T10:57:55.491Z
@@ -13,5 +13,8 @@ Vertical Merchandise Zone. On most units, the rotating carousel will have two po
 ![img_9734.webp](/img_9734.webp)
 Image from jandajanda
 
+# HAL
+Hardware Abstraction Layer. In essence, a system used to interact with all of the physical hardware in the kiosk. Runs motors to turn carousel, run the picker up and down, and interfaces with all sensors inside each assembly. Also can control ventilation / air conditioning systems in some kiosks.
+
 # KFC
 Kiosk Function Check
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