Applications must be able to synchronize accesses to operating system resources in order to ensure correctness in the face of concurrency and system failures. System transactions allow the programmer to specify updates to heterogeneous system resources with the OS guaranteeing atomicity, consistency, isolation, and durability (ACID). System transactions efficiently and cleanly solve persistent ...

The following contains a description of the principles and techniques used in a modular operating system being implemented at the National Physical Laboratory. The computer being used is a KDF9 with 32K words of core store and a disc file. The system provides a time-sharing and file handling capacity as well as the usual services to users.

Many modern systems, including web servers, database engines, and operating system kernels, are using language-based protection mechanisms to provide the safety and integrity traditionally supplied by hardware. As these language-based systems become used in more demanding situations, they are faced with the same problems that traditional operating systems have solved—namely shared resource mana...

This seminar paper describes OpenFlow, a specification developed by a research group at Stanford University that is proposed to be implemented by commercial switches and routers and would allow remote control of their forwarding behavior. It is aimed at providing researchers with an inexpensive and flexible platform to experiment with new network protocols on productionscale traffic. OpenFlow i...

This paper gives an overview of educational operating system called COLIBROS. It is small, object oriented, library operating system, based on micro-kernel concepts, supporting high level concurrency and synchronization primitives. In fact, COLIBROS is simplified operating system kernel accompanied with hardware emulation layer that emulates keyboard, monitor, disk and interrupt mechanism. A co...

PODOS is a performance oriented distributed operating system being developed to harness the performance capabilities of a cluster computing environment. In order to address the growing demand for performance, we are designing a Distributed Operating System (DOS) that can utilize the computing potential of a number of systems. Earlier clustering approaches have traditionally stressed more on res...

Performance, resiliency and programmability across the entire network are now fundamental business requirements for next generation cloud and enterprise data center networks. The need for agility and deployment at scale with regards to provisioning and network operations requires a new level of automation and integration with current data center infrastructure. The underlying design of the netw...

The new paradigm of Software-Defined Networking (SDN) enables exciting new functionality for building networks. Its core component is the so called SDN controller (also termed network operating system). An SDN controller is logically centralized and crucially important, thus, exploiting it can significantly harm SDN-based networks. As recent work considers only flaws and rudimentary malicious l...