diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 99738de..54cc116 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -10,17 +10,31 @@
           {
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+                "mode": "source",
+                "source": false
+              },
+              "icon": "lucide-file",
+              "title": "3a - Hardware primitives & Lamport Bakery algorithm"
+            }
+          },
+          {
+            "id": "40e484b34503a47c",
+            "type": "leaf",
             "state": {
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               "state": {
-                "file": "Concurrent Systems/slides/class 2.pdf",
-                "page": 5,
+                "file": "Concurrent Systems/slides/class 3.pdf",
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                 "left": -11,
-                "top": 63,
+                "top": 426,
                 "zoom": 1.35124703087886
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-              "title": "class 2"
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@@ -199,6 +213,8 @@
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     "Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
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+    "Concurrent Systems/slides/class 2.pdf",
     "Concurrent Systems/notes/1b - Peterson algorithm.md",
     "Concurrent Systems/notes/4c - Dining Philosophers.md",
     "Concurrent Systems/notes/2b - Round Robin algorithm.md",
@@ -207,7 +223,6 @@
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     "Concurrent Systems/notes/4 - Semaphores.md",
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-    "Concurrent Systems/notes/3b - Aravind's algorithm and improvements.md",
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@@ -224,8 +239,6 @@
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-    "HCIW/slides/1 Interface and Interaction for IoT.pdf",
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     "Concurrent Systems/notes/images/Pasted image 20250312121828.png",