JX (operating system) explained

JX
Developer:	University of Erlangen
Source Model:	Free software
Discontinued:	yes
Latest Release Version:	0.1.1
Supported Platforms:	IA-32 (x86)
Kernel Type:	Microkernel
License:	GPLv2 or later^[1]
Website:	JX Project

JX is a free, open source, microkernel operating system developed by the University of Erlangen with both the kernel and applications implemented using the Java programming language.^[2]

Overview

The JX operating system is an extension of the Java Virtual Machine (JVM), incorporating features like protection domains and hardware access. It includes several Java-written components that provide kernel facilities to applications. Because Java is a type-safe language, JX can provide isolation between running applications without needing to use hardware memory protection. This technique, known as language-based protection means that system calls and inter-process communication in JX does not cause an address space switch, an operation which is slow on most computers. JX runs on standard PCs, supporting a limited range of common hardware elements.

The primary benefits of JX include:

• Based on a small trusted computing base (TCB) security system
• Lack of address space switching.
• It is a highly flexible operating system with different configuration possibilities.

See also

• JavaOS

External links

• Project home page
• The JX Operating System
• The Structure of a Type-Safe Operating System
• A Java Operating System as the Foundation of a Secure Network Operating System

Notes and References

1. Web site: JX License.
2. Web site: JX - A flexible Java Operating System (poster). Michael Golm . Meik Felser . Christian Wawersich . Jürgen Kleinöder . University of Erlangen. 2007-04-21.