A typical pc

Processing
Processing is a flexible software sketchbook and a language for learning how to code. Since 2001, Processing has promoted software literacy within the visual arts and visual literacy within technology. There are tens of thousands of students, artists, designers, researchers, and hobbyists who use Processing for learning and prototyping.
Download and open the 'Processing' application. Select something from the Examples. Hit the Run button. Lather, rinse, repeat as necessary. More information on using Processing itself is can be found in the environment section of the reference. To learn the Processing language, we recommend you try a few of the built-in examples, and check out the reference. A group of diverse books have been written to help people with different goals and skill levels.
Processing 4 introduces major improvements behind the scenes, with the primary goal to keep your code running smoothly on the latest hardware and operating systems.If you are still using Processing 3 or a Processing 4 beta, we strongly encourage you to switch to Processing 4 to get the best performance, compatibility, and support in the future.Processing is based on Java, but because program elements in Processing are fairly simple, you can learn to use it even if you don't know any Java. If you're familiar with Java, it's best to forget that Processing has anything to do with Java for a while, until you get the hang of how the API works.An important goal for the project was to make this type of programming accessible to a wider audience. For this reason, Processing is free to download, free to use, and open source. But projects developed using the Processing environment and core libraries can be used for any purpose. This model is identical to GCC, the GNU Compiler Collection. GCC and its associated libraries (e.g. libc) are open source under the GNU Public License (GPL), which stipulates that changes to the code must be made available. However, programs created with GCC (examples too numerous to mention) are not themselves required to be open source.
Processing consists of:
The Processing Development Environment (PDE). This is the software that runs when you double-click the Processing icon. The PDE is an Integrated Development Environment (IDE) with a minimalist set of features designed as a simple introduction to programming or for testing one-off ideas.
A collection of functions (also referred to as commands or methods) that make up the “core” programming interface, or API, as well as several libraries that support more advanced features such as sending data over a network, reading live images from a webcam, and saving complex imagery in PDF format.
A language syntax, identical to Java but with a few modifications.