A SIMPL distributed operating system and its formal definition

Distributed Application Operating System Operating System Api

Middleware is a class of software technologies designed to help manage the complexity and heterogeneity inherent in distributed systems. It is defined as a layer of software above the operating system but below the application program that provides a common programming abstraction across a distributed system, as shown in Figure 1. In doing so, it provides a higher-level building block for progr...

Helios - A Distributed Operating System

Formal specification of a simple operating system

Within the Verisoft project, we aim at the pervasive modeling, implementation, and verification of a complete computer system, from gate-level hardware to applications running on top of an operating system. As an adequate representative for such a system we choose a system for writing, signing, and sending emails. The starting point of our work was a processor together with its assembly languag...

CHORUS Distributed Operating System

The Cnonus technology has been designed for building o'new generations" of open, distributed, scalable Operating Systems. CHoRus has the following main characteristics: ¡ Ír comÍ[tnication-based technology, relying on a minimal Nucleus integrating distributed processing and communication at the lowest level, and providing generic services used by a set of subsystem servers to provide extended s...

Harmonizing a Distributed Operating System with Parallel and Distributed Applications

This paper presents several methods for harmonizing a distributed operating system with parallel and distributed applications. "Harmonization" means that the system does not conflict with parallel/distributed applications and enables them to control mapping and scheduling for speedup and reliability. In conventional distributed operating systems, one of the most important goals is to achieve ne...