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@@ -36,9 +36,30 @@ The following extensions will be helpful for the upcoming work during the course
 ## Docker
 
 ### What is Docker?
-(Explanation of Docker for Students that just use it as a tool and have not much background in computer science)
+
+`Docker` is a *software tool* that allows developers to package their applications into portable and self-sufficient containers.
+
+Think of it like a shipping container that can hold all the necessary components of an application:
+
+- operating system,
+- libraries,
+- dependencies and
+- code.
+
+This container can then be moved between different environments, such as from a developer's laptop to co-workers laptops or to a server in the cloud, without needing to worry about the underlying infrastructure.
+
+In our case, it will help us to ensure we are all working in the same environment, regardless of your personal machines.
+
+A `Docker container` is a **running instance of a `Docker image`**. It is a standalone executable package that includes everything needed to run the application. Docker container run isolated from the host system and other containers.
+
+A `Docker image` is a **snapshot of an application or system** that has been packaged with all the necessary dependencies and configurations required to run and work for a desired use case. It can be thought of a template or a blueprint for creating a `Docker container`.
+
+In `Introduction to Robotics` we will provide you a `Docker image` that is a snapshot of an **Ubunutu operating system** with the **Robot Operating System (ROS)** installed and all the necessary additional libraries that will be necessary for this course.
+
+In the following section you will find information on how to install `Docker` and how to start a running `Docker container` as an instance of the `Docker image` we provided for this course.
 
 ### Installing Docker
+
 Comprehensive instructions on how to **install** `Docker Desktop` on your machines operating system can be found [here](https://docs.docker.com/get-docker/).
 
 After successfull installation, **open** `Docker Desktop`. The GUI should open as shown in the following screenshot.
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