Quantum computers have been shown to efficiently solve a class of problems for which no efficient solution is otherwise known. Physical systems can implement quantum computation, but devising realistic schemes is an extremely challenging problem largely due to the effect of noise. A quantum computer that is capable of correctly solving problems more rapidly than modern digital computers require...

It is widely recognized that a high degree of dependability of computer-based systems can be achieved if dependability consideration starts from the early stages of system development [10]. In this paper we propose an approach for incorporating means for fault-tolerance in the component-based system development. We discuss architecture of a fault-tolerant system based on a composition of so cal...

The aim of our research is to develop a distributed system that support a variety of tasks. Currently, we are implementing Internet applications on the system, including firewall, web and mail applications. These applications have different levels of dependability requirements. Depending on their criticality, a single task may execute on one, two or more computer nodes. Fault tolerant protocols...

in the department of electrical engineering and the department of computer science and engineering. He earned his MSEE and Ph.D degrees in electri-period he designed and developed an anti-submarine warfare system for Indian Navy. Professor Somani's research interests are in the area of fault tolerant computing, computer interconnection networks, computer architecture, parallel computer systems ...

some applications are critical and must designed Fault Tolerant System. Usually Voting Algorithm is one of the principle elements of a Fault Tolerant System. Two kinds of voting algorithm are used in most applications, they are majority voting algorithm and weighted average algorithm these algorithms have some problems. Majority confronts with the problem of threshold limits and voter of weight...

some applications are critical and must designed Fault Tolerant System. Usually Voting Algorithm is one of the principle elements of a Fault Tolerant System. Two kinds of voting algorithm are used in most applications, they are majority voting algorithm and weighted average algorithm these algorithms have some problems. Majority confronts with the problem of threshold limits and voter of weight...

This paper presents a case study of the design and implementation of the interprocess communications facility developed for the AN/BSY-2 distributed computer system, the computer system for the Seawolf submarine. The interprocess communications facility was identified as a critical design challenge for the AN/BSY-2 system, as the system incorporated new component and network technology along wi...

Instead of a quantum computer where the fundamental units are 2-dimensional qubits, we can consider a quantum computer made up of d-dimensional systems. There is a straightforward generalization of the class of stabilizer codes to d-dimensional systems, and I will discuss the theory of fault-tolerant computation using such codes. I prove that universal fault-tolerant computation is possible wit...