diff --git a/Electronics/Integrated_circuits.md b/Electronics/Integrated_circuits.md
index f698672..61c05a9 100644
--- a/Electronics/Integrated_circuits.md
+++ b/Electronics/Integrated_circuits.md
@@ -5,3 +5,16 @@ categories:
   - Hardware
 tags: [logic-gates]
 ---
+
+# Integrated circuits
+
+An integrated circuit (IC) is a single unit that comprises several logic gates designed for the easy construction of [digital circuits](/Electronics/Digital_circuits.md). The terms "integrated circuit" and "chip" are often used interchangeably.
+
+An IC puts the gates on a single piece of silicon that has electrical contact points called pins. The type we will look at are called **dual in-line packages** (DIPs). They are rectangular wth two parallel rows of pins. The pins make it easy to connect DIPs to a breadboard.
+
+_An integrated circuit and its use on a breadboard:_
+
+<img align="left" width="200" src="/home/thomas/repos/computer_science/img/integrated-circuit.jpeg">
+<img  width="200" src="/home/thomas/repos/computer_science/img/breadboard-DIP.jpg">
+
+// TODO: Add diagrams of different IC gate types