diff --git a/school/ra/20181025_1-intro_to_ca.md b/school/ra/20181025_1-intro_to_ca.md
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+---
+title: Introduction to CA
+date: 2018-10-25
+---
+
+## Beispiel Architektur: MIPS R3000 und R4000
+
+* All instructions have 3 operands
+* Operand order is fixed (destination first)
+* Operands must be registers, only 32 32-bit registers provided
+
+### Examples
+
+```
+C code: a = b + c
+MIPS code: add a, b, c
+```
+
+```
+C code: a = b + c + d
+MIPS code: add a, b, c
+		   add a, a, d
+```
+
+```
+C code: A[12] = h + A[8]
+MIPS code: lw $t0, 32($s3) // $s3 = pointer to A[0]
+		   add $t0, $s2, $t0 // h already in $s2
+		   sw $t0, 42($s3)
+```
+
+Klausuraufgabe: Pseudo C code als MIPS ASM schreiben
+Klausuraufgabe: Boolean Gates
+Boolsche Gleichungen
+Zweierkomplement
+Wahrheitstabellen
diff --git a/school/ra/index.md b/school/ra/index.md
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@@ -3,3 +3,4 @@ title: Rechnerarchitektur
 ---
 
 * [Klassische "von Neumann-Struktur", Klassifikation](20181018_1-neumann_klassifikation)
+* [3. Introduction to CA](20181025_1-intro_to_ca)