JX (operating system)

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JX is a microkernel operating system with both the kernel and applications implemented using the Java programming language.^[2]

Overview[]

JX is implemented as an extended Java virtual machine (the JX Core), adding support to the Java system for necessary features such as protection domains and hardware access, along with a number of components written in Java that provide kernel facilities to applications running on the computer. Because Java is a type-safe language, JX is able to 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, with support for a limited range of common hardware elements. It is Free software, developed by the University of Erlangen.^[3]

The primary benefits of JX include:

• base on a small trusted computing base (TCB) security system
• lack of address space switching compare to most other microkernel systems
• it is a highly flexible operating system with different configuration possibilities

See also[]

• JavaOS

References[]

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