From 057c59ca5adfd7b20a40efecc70ccc12aadae699 Mon Sep 17 00:00:00 2001
From: pearmini <subairui@icloud.com>
Date: Fri, 2 Jan 2026 19:24:08 -0500
Subject: [PATCH 1/3] Add computer layers

---
 app/examples/computer-layers.recho.js | 38 +++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 app/examples/computer-layers.recho.js

diff --git a/app/examples/computer-layers.recho.js b/app/examples/computer-layers.recho.js
new file mode 100644
index 0000000..7ddf7ca
--- /dev/null
+++ b/app/examples/computer-layers.recho.js
@@ -0,0 +1,38 @@
+/**
+ * @title Computer Layers
+ * @author Bairui Su
+ * @created 2026-01-02
+ * @github pearmini
+ * @pull_request 207
+ * @thumbnail_start 41
+ * @label Beginner
+ */
+
+/**
+ * ============================================================================
+ * =                            Computer Layers                               =
+ * ============================================================================
+ *
+ * > Computer can be seen as layers of technology, with increasing complexity and
+ * > abstraction as they go up. Programming can happen at different layers.
+ *
+ * - By Everest Pipkin, 2020
+ * - Ref. https://ifyoulived.org/fuzzy/#I%20-%20Computers%20were%20humans
+ */
+
+const layers = [
+  "Application",
+  "Algorithm",
+  "Programming Language",
+  "Assembly Language",
+  "Machine Code",
+  "Instruction Set Architecture",
+  "Microarchitecture",
+  "Gates/Registers",
+  "Device (Transistors)",
+  "Physicals",
+];
+
+for (let i = 0; i < layers.length; i++) {
+  echo.key(i)(layers[i]);
+}

From f75f939b876d4834bcc58d219bb30d4ea20df0c3 Mon Sep 17 00:00:00 2001
From: pearmini <subairui@icloud.com>
Date: Fri, 2 Jan 2026 19:26:06 -0500
Subject: [PATCH 2/3] Update PR number

---
 app/examples/computer-layers.recho.js | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/app/examples/computer-layers.recho.js b/app/examples/computer-layers.recho.js
index 7ddf7ca..61c10e1 100644
--- a/app/examples/computer-layers.recho.js
+++ b/app/examples/computer-layers.recho.js
@@ -4,7 +4,7 @@
  * @created 2026-01-02
  * @github pearmini
  * @pull_request 207
- * @thumbnail_start 41
+ * @thumbnail_start 36
  * @label Beginner
  */
 
@@ -33,6 +33,27 @@ const layers = [
   "Physicals",
 ];
 
+//➜ +-----+--------------------------------+
+//➜ | {0} |                  "Application" |
+//➜ |-----|--------------------------------|
+//➜ | {1} |                    "Algorithm" |
+//➜ |-----|--------------------------------|
+//➜ | {2} |         "Programming Language" |
+//➜ |-----|--------------------------------|
+//➜ | {3} |            "Assembly Language" |
+//➜ |-----|--------------------------------|
+//➜ | {4} |                 "Machine Code" |
+//➜ |-----|--------------------------------|
+//➜ | {5} | "Instruction Set Architecture" |
+//➜ |-----|--------------------------------|
+//➜ | {6} |            "Microarchitecture" |
+//➜ |-----|--------------------------------|
+//➜ | {7} |              "Gates/Registers" |
+//➜ |-----|--------------------------------|
+//➜ | {8} |         "Device (Transistors)" |
+//➜ |-----|--------------------------------|
+//➜ | {9} |                    "Physicals" |
+//➜ +-----+--------------------------------+
 for (let i = 0; i < layers.length; i++) {
   echo.key(i)(layers[i]);
 }

From a068d70d6c694c09bedafb9ec54b7e5b1a9b2925 Mon Sep 17 00:00:00 2001
From: pearmini <subairui@icloud.com>
Date: Fri, 2 Jan 2026 19:36:58 -0500
Subject: [PATCH 3/3] Fix typos

---
 app/examples/computer-layers.recho.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/examples/computer-layers.recho.js b/app/examples/computer-layers.recho.js
index 61c10e1..caf5d4b 100644
--- a/app/examples/computer-layers.recho.js
+++ b/app/examples/computer-layers.recho.js
@@ -13,7 +13,7 @@
  * =                            Computer Layers                               =
  * ============================================================================
  *
- * > Computer can be seen as layers of technology, with increasing complexity and
+ * > Computers can be seen as layers of technology, with increasing complexity and
  * > abstraction as they go up. Programming can happen at different layers.
  *
  * - By Everest Pipkin, 2020