--- title: Learn Computing from the Experts | The Rheinwerk Computing Blog (20) description: Dive into programming, web development, and more with Rheinwerk Computing Blog! Your go-to resource for expanding your computing knowledge. (20) --- [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://blog.rheinwerk-computing.com/) [Blog](https://blog.rheinwerk-computing.com) - Books - Get an overview of our wide selection of books on every relevant computing topic. - [General Computing](https://www.sap-press.com/rheinwerk-computing/general-computing/) - [DevOps](https://www.sap-press.com/rheinwerk-computing/devops/) - [Programming Languages](https://www.sap-press.com/rheinwerk-computing/programming-languages/) - [Security](https://www.sap-press.com/rheinwerk-computing/security/) - [Software Development](https://www.sap-press.com/rheinwerk-computing/software-development/) - Book Subscription - Get unlimited access to all Rheinwerk Computing books! - [Programming Subscription](https://sap-press.com/subscriptions/) ![](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Write%20Your%20Own%20Python%20Functions.jpg?width=1000&name=How%20to%20Write%20Your%20Own%20Python%20Functions.jpg) [Featured](https://blog.rheinwerk-computing.com/tag/featured) | Featured article ## [How to Write Your Own Python Functions](https://blog.rheinwerk-computing.com/how-to-write-your-own-python-functions) Functions in Python provide functionality that you or someone else has already pro­grammed. In this post, we’ll teach you how to write your own Python functions. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-write-your-own-python-functions) # Latest Blog Posts [![What Is the Koadic Postexploitation Framework?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20the%20Koadic%20Postexploitation%20Framework.png?height=600&name=What%20Is%20the%20Koadic%20Postexploitation%20Framework.png)](https://blog.rheinwerk-computing.com/what-is-the-koadic-postexploitation-framework) [Administration](https://blog.rheinwerk-computing.com/tag/administration) ## [What Is the Koadic Postexploitation Framework?](https://blog.rheinwerk-computing.com/what-is-the-koadic-postexploitation-framework) Koadic is a tool for penetration testing or internal vulnerability testing in your own Windows network. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-is-the-koadic-postexploitation-framework) [![Exploring Different Linux Distributions](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Exploring%20Different%20Linux%20Distributions.png?height=600&name=Exploring%20Different%20Linux%20Distributions.png)](https://blog.rheinwerk-computing.com/exploring-different-linux-distributions) [Administration](https://blog.rheinwerk-computing.com/tag/administration) ## [Exploring Different Linux Distributions](https://blog.rheinwerk-computing.com/exploring-different-linux-distributions) Linux, an open-source operating system kernel, forms the foundation of a multitude of distributions, commonly referred to as distros. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/exploring-different-linux-distributions) [![How to Install Pop!\_OS on Linux](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Install%20Pop!_OS%20on%20Linux.png?height=600&name=How%20to%20Install%20Pop!_OS%20on%20Linux.png)](https://blog.rheinwerk-computing.com/how-to-install-pop-os-on-linux) [Administration](https://blog.rheinwerk-computing.com/tag/administration) ## [How to Install Pop!\_OS on Linux](https://blog.rheinwerk-computing.com/how-to-install-pop-os-on-linux) The Pop!\_OS Linux distribution is derived from Ubuntu and is developed by an American company called *System76*. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-install-pop-os-on-linux) [![The java.util.Objects Utility Class](https://blog.rheinwerk-computing.com/hs-fs/hubfs/The%20java.util.Objects%20Utility%20Class.png?height=600&name=The%20java.util.Objects%20Utility%20Class.png)](https://blog.rheinwerk-computing.com/the-java-util-objects-utility-class) [Java](https://blog.rheinwerk-computing.com/tag/java) ## [The java.util.Objects Utility Class](https://blog.rheinwerk-computing.com/the-java-util-objects-utility-class) The Objects class in Java contains some static utility functions. 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To process JSON documents, you must import the json module. This module comes with Python by default and... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/exploring-json-and-python) [![The Principles of Object-Oriented Programming](https://blog.rheinwerk-computing.com/hs-fs/hubfs/The%20Principles%20of%20Object-Oriented%20Programming.png?height=600&name=The%20Principles%20of%20Object-Oriented%20Programming.png)](https://blog.rheinwerk-computing.com/the-principles-of-object-oriented-programming) [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) ## [The Principles of Object-Oriented Programming](https://blog.rheinwerk-computing.com/the-principles-of-object-oriented-programming) Object-oriented programming is based on four essential principles. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/the-principles-of-object-oriented-programming) [![Getting Started with GitLab](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Getting%20Started%20with%20GitLab.png?height=600&name=Getting%20Started%20with%20GitLab.png)](https://blog.rheinwerk-computing.com/getting-started-with-gitlab) [DevOps](https://blog.rheinwerk-computing.com/tag/devops) ## [Getting Started with GitLab](https://blog.rheinwerk-computing.com/getting-started-with-gitlab) With Microsoft’s acquisition of GitHub in June 2018, it once again became clear that cloud services and thus also the data stored there can quickly... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/getting-started-with-gitlab) [![Getting Started with Kubernetes](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Getting%20Started%20with%20Kubernetes.png?height=600&name=Getting%20Started%20with%20Kubernetes.png)](https://blog.rheinwerk-computing.com/getting-started-with-kubernetes) [DevOps](https://blog.rheinwerk-computing.com/tag/devops) ## [Getting Started with Kubernetes](https://blog.rheinwerk-computing.com/getting-started-with-kubernetes) Kubernetes has revolutionized the way developers deploy, manage, and scale containerized applications. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/getting-started-with-kubernetes) [![What Is a Convolutional Neural Network?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20a%20Convolutional%20Neural%20Network.png?height=600&name=What%20Is%20a%20Convolutional%20Neural%20Network.png)](https://blog.rheinwerk-computing.com/what-is-a-convolutional-neural-network) [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) ## [What Is a Convolutional Neural Network?](https://blog.rheinwerk-computing.com/what-is-a-convolutional-neural-network) A convolutional neural network (CNN) is a special multilayer network consisting of a detection part and an identification part. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-is-a-convolutional-neural-network) - 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