Queuing network techniques are effective for evaluating the performance of computer systems. We discuss a queuing network technique for computer systems with multiple memory resource requirements. When a job arrives from outside the network, it occupies one of the memory resources and executes CPU and I/O processing in the network occupying the memory. When the job completes the CPU and I/O pro...

This paper discusses the various types of malicious software, particularly computer viruses, which threaten computer network dependability, including such attributes as reliability, availability, safety and security of computer systems. Quantitative risk assessment of computer virus attacks on computer networks is investigated. To this end, an analytical model to study computer virus propagatio...

During the past decade, the computer world has been changing a dramatic change in many aspects. In the past, personal computer was known as a desktop machine that functioned alone. All the resources, data, and computing power were within the same machine. However, in the network world today, more and more computers are connected together through the media to share data and resources or parallel...

With the continuous improvement of computer hardware, major factors affecting the efficiency of computer network have been the pros and cons of the network structure. So it can ensure the operational efficiency, stability and security of the network and save a lot of hardware resources to reasonably plan the distributed computer network. At present, planning levels of many distributed computer ...

Computer-Aided Design and Applications is an international journal on the applications of CAD CAM. It publishes papers in general domain plus emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, data mining, internet, education, genetic algorithms engines. The aimed at all developers users technology to ptovide solutions for various stages design manufacturing. about technol...

A fundamental problem in distributed computing environments involves determining whether a remote computer system can be trusted to autonomously access secure resources via a network. In this paper, we describe a means by which a remote computer system can be challenged to demonstrate that it is genuine and trustworthy. Upon passing a test, it can be granted access to distributed resources and ...

grid computing is a term referring to the combination of computer resources from multiple administrative domains to reach a common computational platform. mobile computing is a generic word that introduces using of movable, handheld devices with wireless communication, for processing data. mobile computing focused on providing access to data, information, services and communications anywhere an...