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Jazelle DBX (direct bytecode execution) [1] is an extension that allows some ARM processors to execute Java bytecode in hardware as a third execution state alongside the existing ARM and Thumb modes. [2] Jazelle functionality was specified in the ARMv5TEJ architecture [3] and the first processor with Jazelle technology was the ARM926EJ-S. [4]
A kernel is a component of a computer operating system. [1] A comparison of system kernels can provide insight into the design and architectural choices made by the developers of particular operating systems.
Nachos has various modules implementing the functionality of a basic operating system. The wrapper functions for various system calls of the OS kernel are generally implemented in a manner similar to that of the UNIX system calls. [3]
It allows developers to cleanly separate code from architecture. It can be used as an application server , embedded in a Java container or employed as a cloud computing platform. As a platform, it is an implementation of the resource-oriented computing (ROC) abstraction.
TRON (acronym for The Real-time Operating system Nucleus) is an open architecture real-time operating system kernel design. The project was started by Ken Sakamura of the University of Tokyo in 1984. [1] The project's goal is to create an ideal computer architecture and network, to provide for all of society's needs. [2]
OpenComRTOS uses a uniform architecture with a kernel Task, driver Tasks, and application Tasks, each having a Task input Port. The same interface is used for the Interrupt Service Routines. The underlying architecture relies on the use of prioritised packet switching with communication and routing being part of the underlying system services ...
As both hurd and hird are homophones of the English word herd, the full name GNU Hurd is also a play on the words herd of gnus, reflecting how the kernel works. [9] The logo is called the Hurd boxes and it also reflects on architecture. The logo is a graph where nodes represent the Hurd kernel's servers and directed edges are IPC messages. [8]
ChorusOS is a microkernel real-time operating system designed as a message passing computing model. ChorusOS began as the Chorus distributed real-time operating system research project at the French Institute for Research in Computer Science and Automation (INRIA) in 1979. [1]