Since the first microkernel appeared, improving modularity and flexibility of operating systems, there has been support for application-specific operating systems (ASOS). This term is often used to refer to the ability for customization and reconfiguration to meet the requirements of specific applications or application domains. The general idea is to provide lower cost and higher performance b...

• uniform interfaces—same for kernel and user-level services • extensibility—can add new services • flexibility—can subtract/modify services • portability—easier to port operating system because os-specific part is smaller • reliability—smaller kernel makes its implementation likely to be more reliable. Also more well-defined APIs. • distributed system support—pieces can be on another machine. ...

A software platform for developing future information appliances requires to satisfy various diverse requirements. The operating system architecture presented in this paper enhances the flexibility and dependability through virtualization techniques. The architecture allows a system to use multiple operating systems simultaneously, and to use multi-core processors in a flexible way. Also, depen...

From a system thinking perspective, competition/cooperation boundaries govern the evolution of a firm’s adaptive strategic behaviour and drive it towards its desired objectives. By analyzing different scenarios using a system dynamic simulation approach and considering market competitive dynamics, this study explores the volume flexibility measure considering both the operating environment and ...

The research communitiy has shown considerable interest in studying access control in single Trusted Operating Systems (TOS). However, interactions among multiple TOSs have attracted relatively little attention. In this paper, we propose a Collaborative Role-Based Access Control (C-RBAC) model for distributed systems in which accesses across system domain boundaries are allowed. Access entities...

Soft errors are emerging with the ongoing reduction of structure sizes in current and future hardware designs. This problematic is generally tackled by employing fault detection or tolerance measures from an applications’ point of view. At the same time, research commences to harden the operating system, often considered as remaining single point of failure. Certainly, these measures can effect...

Embedded systems can no longer depend on independent hardware or software solutions to real time problems due to cost, efficiency, flexibility, upgradeability, and development time. System designers are now turning to hardware/software co-design approaches that offer real time capabilities while maintaining flexibility to support increasing complex systems. Although long desired, reconfigurable...

Flexibility to adapt to di erent applications is a key requirement of modern operating systems. We have explored the use of meta-objects and re ection as a means to write adaptable system software. This paper discusses the Apertos operating system that uses these techniques. It outlines how meta-objects help to support exibility and how we have implemented the concepts, and gives some performan...

With the advent of the 64bit microprocessor, the virtual address space supported by a workstation will be large enough to permit the use of a single shared address space spanning a network of workstations as the primary abstraction provided by a distributed operating system. In such a system, built upon a software distributed shared memory, the programmer has considerable flexibility when choos...

Flexibility to adapt to radically diierent network environments will be key to the success of new distributed operating systems. An operating system must be able to support the distribution of objects on high bandwidth ber-optic as well low-bandwidth wireless networks. In this position paper, we provide a sketch of OS6, a new operating system being designed to provide low latency run-time servi...