JaguiD is a Java GUI for DOS. It consists of several sub-projects including a Java Compiler, a Class Runner and a Jar Packager. JaguiD has limited Java support to provide a Graphical User Interface for DOS and compatibles.
Vera is the true calc lover's OS. The main idea behind it is that it consists of a very basic kernel that allows for file storage and some hardware control, on top of which other programs or plugins can be built.
The Banana Kernel is an open-source pedagogical operating system intended to provide useful means for teaching basic OS concepts, with the possibility of interaction with external modules developed by the teacher or student.
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