diff --git a/src/main/dig/processor/IO/Keyboard.dig b/src/main/dig/processor/IO/Keyboard.dig
new file mode 100644
index 000000000..658a38422
--- /dev/null
+++ b/src/main/dig/processor/IO/Keyboard.dig
@@ -0,0 +1,157 @@
+<?xml version="1.0" encoding="utf-8"?>
+<circuit>
+  <version>1</version>
+  <attributes/>
+  <visualElements>
+    <visualElement>
+      <elementName>Keyboard</elementName>
+      <elementAttributes/>
+      <pos x="500" y="280"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Out</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Label</string>
+          <string>D</string>
+        </entry>
+        <entry>
+          <string>Bits</string>
+          <int>16</int>
+        </entry>
+      </elementAttributes>
+      <pos x="600" y="280"/>
+    </visualElement>
+    <visualElement>
+      <elementName>In</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Description</string>
+          <string>address {{de Adressbus}}</string>
+        </entry>
+        <entry>
+          <string>Label</string>
+          <string>A</string>
+        </entry>
+        <entry>
+          <string>Bits</string>
+          <int>16</int>
+        </entry>
+      </elementAttributes>
+      <pos x="260" y="340"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Comparator</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Bits</string>
+          <int>16</int>
+        </entry>
+      </elementAttributes>
+      <pos x="320" y="340"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Const</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Value</string>
+          <long>30</long>
+        </entry>
+        <entry>
+          <string>Bits</string>
+          <int>16</int>
+        </entry>
+      </elementAttributes>
+      <pos x="300" y="360"/>
+    </visualElement>
+    <visualElement>
+      <elementName>And</elementName>
+      <elementAttributes/>
+      <pos x="400" y="360"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Clock</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Label</string>
+          <string>C</string>
+        </entry>
+      </elementAttributes>
+      <pos x="260" y="280"/>
+    </visualElement>
+    <visualElement>
+      <elementName>In</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Description</string>
+          <string>Read Enable {{de Lesefreigabe}}</string>
+        </entry>
+        <entry>
+          <string>Label</string>
+          <string>R</string>
+        </entry>
+      </elementAttributes>
+      <pos x="260" y="400"/>
+    </visualElement>
+    <visualElement>
+      <elementName>Out</elementName>
+      <elementAttributes>
+        <entry>
+          <string>Label</string>
+          <string>intr</string>
+        </entry>
+      </elementAttributes>
+      <pos x="600" y="320"/>
+    </visualElement>
+  </visualElements>
+  <wires>
+    <wire>
+      <p1 x="260" y="400"/>
+      <p2 x="400" y="400"/>
+    </wire>
+    <wire>
+      <p1 x="580" y="320"/>
+      <p2 x="600" y="320"/>
+    </wire>
+    <wire>
+      <p1 x="260" y="340"/>
+      <p2 x="320" y="340"/>
+    </wire>
+    <wire>
+      <p1 x="560" y="280"/>
+      <p2 x="600" y="280"/>
+    </wire>
+    <wire>
+      <p1 x="260" y="280"/>
+      <p2 x="500" y="280"/>
+    </wire>
+    <wire>
+      <p1 x="380" y="360"/>
+      <p2 x="400" y="360"/>
+    </wire>
+    <wire>
+      <p1 x="300" y="360"/>
+      <p2 x="320" y="360"/>
+    </wire>
+    <wire>
+      <p1 x="460" y="380"/>
+      <p2 x="480" y="380"/>
+    </wire>
+    <wire>
+      <p1 x="480" y="300"/>
+      <p2 x="500" y="300"/>
+    </wire>
+    <wire>
+      <p1 x="560" y="300"/>
+      <p2 x="580" y="300"/>
+    </wire>
+    <wire>
+      <p1 x="480" y="300"/>
+      <p2 x="480" y="380"/>
+    </wire>
+    <wire>
+      <p1 x="580" y="300"/>
+      <p2 x="580" y="320"/>
+    </wire>
+  </wires>
+</circuit>
\ No newline at end of file
diff --git a/src/test/java/de/neemann/digital/integration/TestExamples.java b/src/test/java/de/neemann/digital/integration/TestExamples.java
index 9934596e5..3feff5ab2 100644
--- a/src/test/java/de/neemann/digital/integration/TestExamples.java
+++ b/src/test/java/de/neemann/digital/integration/TestExamples.java
@@ -32,7 +32,7 @@ public class TestExamples extends TestCase {
      */
     public void testDistExamples() throws Exception {
         File examples = new File(Resources.getRoot().getParentFile().getParentFile(), "/main/dig");
-        assertEquals(247, new FileScanner(this::check).scan(examples));
+        assertEquals(248, new FileScanner(this::check).scan(examples));
         assertEquals(170, testCasesInFiles);
     }