1 files changed, 42 insertions, 0 deletions
diff --git a/slides/2019-it-intro-computer-systems/img/computer-system.tex b/slides/2019-it-intro-computer-systems/img/computer-system.tex
new file mode 100644
index 0000000..7966868
--- /dev/null
+++ b/slides/2019-it-intro-computer-systems/img/computer-system.tex
@@ -0,0 +1,42 @@
+\begin{tikzpicture}[
+  -latex,
+  entity/.style = {
+    draw=lightGray,
+    top color=lightGray,
+    bottom color=white,
+    rectangle,
+    shading=axis,
+    minimum width=2cm,
+  },
+  nop/.style = {
+    draw=none,
+  },
+  frame/.style = {
+    draw,
+    -,
+    dashed,
+    thick,
+    rounded corners,
+  },
+  label/.style = {
+    draw=none,
+  },
+]
+  % Software and hardware
+  \node[entity] (hardware) at (0,0) {hardware};
+  \node[entity, above=12pt of hardware] (software) {software};
+  \node[nop] at ($ (software) !.5! (hardware) $) {+};
+  \coordinate (l) at ($ (current bounding box.west)  + (-0.5,  0  ) $);
+  \coordinate (r) at ($ (current bounding box.east)  + ( 0.5,  0  ) $);
+  \coordinate (b) at ($ (current bounding box.south) + ( 0,   -0.5) $);
+  \coordinate (t) at ($ (current bounding box.north) + ( 0,    0.5) $);
+  \path[frame]
+    (l) |- (t)
+      node[label,below]{computer system} -|
+    (r) |- (b) -| (l);
+
+  % User and data
+  \node[nop, above=of t] (user) {\includegraphics[width=1cm]{img/user}};
+  \node[nop, above=-10pt of user] {user};
+  \draw[latex-latex] (user) -- node[label,right]{data} ($ (t) + (0, 0.25) $);
+\end{tikzpicture}