diff --git a/Blocks.md b/Blocks.md
index e1fd34d..c944492 100644
--- a/Blocks.md
+++ b/Blocks.md
@@ -37,6 +37,8 @@ From left to right: Card slots/RAM slots/HDD slots.
 
 For most use cases a basic case will be quite adequate. When you want to run more complex applications or control multiple screens you may need to upgrade to a higher tier case, though.
 
+Computers [[offer an API|Component/Computer]] to the programs running on them and neighbored blocks, allowing them to start or stop the computer, and to inspect its running state, for example.
+
 Advanced Case
 -------------
 ![Advanced Case](http://i.imgur.com/HvfyCv7.png)
@@ -101,10 +103,12 @@ Redstone I/O
 ------------
 ![Redstone I/O](http://i.imgur.com/CiNEBNM.png)
 
-Allows reading and emitting redstone signals around the block. Can be controlled by any computer the block is connected to. This is basically like an external redstone card.
+Allows reading and emitting redstone signals around the block. Can be controlled by any computer the block is connected to. This is basically like an external [[redstone card|Items#redstone-card]].
 - This also supports RedLogic wires, if present, including colored and bundled wires.
 - This also supports MineFactory Reloaded cables, if present.
 
+Like redstone cards, this offers the [[redstone component|Component/Redstone]] API.
+
 Robot
 -----
 ![Robot](http://i.imgur.com/fHWkdgb.png)