diff --git a/source/Cosmos.Core/IOGroup/TextScreen.cs b/source/Cosmos.Core/IOGroup/TextScreen.cs
index 2cb044903..0f67b4a4a 100644
--- a/source/Cosmos.Core/IOGroup/TextScreen.cs
+++ b/source/Cosmos.Core/IOGroup/TextScreen.cs
@@ -5,15 +5,42 @@ using System.Text;
 using Cosmos.Core;
 
 namespace Cosmos.Core.IOGroup {
+    /// <summary>
+    /// IOGroup text screen.
+    /// </summary>
     public class TextScreen : IOGroup {
+        /// <summary>
+        /// Memory.
+        /// </summary>
         public readonly MemoryBlock Memory = new MemoryBlock(0xB8000, 80 * 25 * 2);
         // These should probably move to a VGA class later, or this class should be remade into a VGA class
+        /// <summary>
+        /// Misc. output.
+        /// </summary>
         public readonly IOPort MiscOutput = new IOPort(0x03C2);
+        /// <summary>
+        /// First IOPort index.
+        /// </summary>
         public readonly IOPort Idx1 = new IOPort(0x03C4);
+        /// <summary>
+        /// First IOPort data.
+        /// </summary>
         public readonly IOPort Data1 = new IOPort(0x03C5);
+        /// <summary>
+        /// Second IOPort index.
+        /// </summary>
         public readonly IOPort Idx2 = new IOPort(0x03CE);
+        /// <summary>
+        /// Second IOPort data.
+        /// </summary>
         public readonly IOPort Data2 = new IOPort(0x03CF);
+        /// <summary>
+        /// Third IOPort index.
+        /// </summary>
         public readonly IOPort Idx3 = new IOPort(0x03D4);
+        /// <summary>
+        /// Third IOPort data.
+        /// </summary>
         public readonly IOPort Data3 = new IOPort(0x03D5);
     }
 }