1 files changed, 29 insertions, 0 deletions
diff --git a/slides/2019-it-intro-computer-systems/img/layered.tex b/slides/2019-it-intro-computer-systems/img/layered.tex
new file mode 100644
index 0000000..565753f
--- /dev/null
+++ b/slides/2019-it-intro-computer-systems/img/layered.tex
@@ -0,0 +1,29 @@
+\begin{tikzpicture}[
+  entity/.style = {
+    draw=lightGray!30,
+    rounded rectangle,
+    minimum width=5cm,
+    minimum height=0.75cm,
+    bottom color = black!75,
+    text = white,
+    thick,
+  },
+  arrow/.style = {
+    draw = darkOrange,
+    -triangle 90,line width=1mm,
+    postaction={draw, line width=0.1cm, shorten >=0.1cm, -},
+  }
+]
+\node[entity, top color = darkBlue] (user) at (0,0) {user};
+\node[entity, top color = darkPurple, below=of user] (app) {application software};
+\node[entity, top color = darkGreen, below=of app] (sys) {system software};
+\node[entity, top color = darkRed, below=of sys] (hw) {hardware};
+
+\path[arrow] (user.330) -- (app.30);
+\path[arrow] (app.330) -- (sys.30);
+\path[arrow] (sys.330) -- (hw.30);
+
+\path[arrow] (hw.150) -- (sys.210);
+\path[arrow] (sys.150) -- (app.210);
+\path[arrow] (app.150) -- (user.210);
+\end{tikzpicture}