"cloudsim: a toolkit for modeling and simulation of cloud computing environments and evaluation of resource provisioning algorithms" presents the background information on various elements that form the basis for architecting Cloud computing systems. It also presents the requirements of elastic or malleable applications that need to scale across multiple, geographically distributed data centers that are owned by one or more Cloud service providers.
The aim of this book is to give a treatment of the actively developed domain of Ubiquitous computing. Originally proposed by Mark D. Weiser, the concept of Ubiquitous computing enables a real-time global sensing, context-aware informational retrieval, multi-modal interaction with the user and enhanced visualization capabilities. In effect, Ubiquitous computing environments give extremely new and futuristic abilities to look at and interact with our habitat at any time and from anywhere.
Consolidation of applications in cloud computing environments presents a significant opportunity for energy optimization. As a first step toward enabling energy efficient consolidation, we study the inter-relationships between energy consumption, resource utilization, and performance of consolidated workloads. The study reveals the energy performance trade-offs for consolidation and shows that optimal operating points exist. We model the consolidation problem as a modified bin packing problem and illustrate it with an example.
Over the past several years there have been a number of projects aimed at building ‘production’ Grids. These Grids are intended to provide identiﬁed user communities with a rich, stable, and standard distributed computing environment. By ‘standard’ and ‘Grids’, we speciﬁcally mean Grids based on the common practice and standards coming out of the Global Grid Forum (GGF) (www.gridforum.org).
Database management has evolved from a specialized computer application to a
central component of a modern computing environment, and, as a result, knowl-
edge about database systems has become an essential part of an education in com-
puter science. In this text, we present the fundamental concepts of database manage-
ment. These concepts include aspects of database design, database languages, and
This short chapter summarizes the current status of Grid Computational and Programming environments. It puts the corresponding section of this book in context and integrates a survey of a set of 28 chapters gathered together by the Grid Computing Environment (GCE) group of the Global Grid Forum, which is being published in 2002 as a special issue of Concurrency and Computation: Practice and Experience. Several of the chapters here are extensions or reprints of those papers.
Recent developments in high-performance networks, computers, information servers, and display technologies make it feasible to design network-enabled tools that incorporate remote compute and information resources into local computational environments and collaborative environments that link people, computers, and databases into collaborative sessions.
This book presents the first integrated, single-source reference on market-oriented grid and utility computing. Divided into four main parts—and with contributions from a panel of experts in the field—it systematically and carefully explores:
Foundations—presents the fundamental concepts of market-oriented computing and the issues and challenges in allocating resources in a decentralized computing environment.
Chapter 3 - Overview of operating systems. This chapter deals with the fundamental principles of an operating system; it is a key chapter in the book. It discusses the nature of computations in different kinds of computing environments and features of operating systems used in these environments, and follows up this discussion with the notions of efficiency, system performance, and user service.
Who is the book for?
This book has been written for people whose first language is not English, and who use or
are going to use computers and other information technology in an English-speaking
environment. It covers the language needed to use information technology equipment,
work with computer programs, discuss problems and plan projects. It does not cover
advanced technical vocabulary for computer programmers or electronic engineers. All the
language in the book is intended to be accessible to intermediate level students and above....
Information communications technology (ICT) has been found to be one of the most potent tools for promot-
ing equity and access to education, and a great resource in bridging the gap of the digital divide. ICT affects
almost all of our everyday activities, be it business, defense, or space exploration. Being informed of the latest
information has become essential for survival. Educational enterprises also beneft from the advantages and
technological learning tools offered by ICT. ICT is indispensable for creating effective distance education learn-
Home computers that are connected to the Internet are
under attack and need to be secured. That process is
relatively well understood, even though we do not have
perfect solutions today and probably never will.
Meanwhile, however, the home computing environment
is evolving into a home network of multiple devices,
which will also need to be secured. We have little
experience with these new home networks and much
research needs to be done in this area. This paper gives
a view of the requirements and some of the techniques
available for securing home networks....
Chương 3. Giới thiệu bộ Globus Toolkit phiên bản 3.2
cách ứng dụng với các cấu hình môi trường thực thi cụ thể. Container cũng điều khiển chu kỳ sống của các Grid service, và phân phối các yêu cầu đến các service instance. Container mở rộng cũng như bao gồm các interface chuẩn của một Web Service Engine (WSE), WSE chịu trách nhiệm xử lý các thông điệp XML.
Managing a Microsoft Windows Network Environment, a five-day instructorled
course, provides the knowledge required by Microsoft® Certified System
Administrators (MCSAs). While Microsoft Certified System Engineers
(MCSEs) are qualified to design and plan, deploy, manage, and troubleshoot
complex Windows system and network environments in medium to large
organizations, Network Administrators and Technical Support specialists
perform more limited duties on a smaller scale, such as on the department
This module identifies the facility, process, technology, and people issues that
must be considered when planning a data center environment.
During the lab at the end of the module, students will have an opportunity to
practice planning a data center environment.
After completing this module, students will be able to:
Identify the data center environment.
Identify people considerations for managing a data center environment.
Identify process considerations for managing a data center environment.
Identify technology considerations for a data center environment.
We show how a simple but innovative synthesis of key disciplines such as computing
science and cognitive science, can be deployed in combination with such topics as
ergonomics, e-learning, pedagogy, cognitive psychology, interactive system design,
neuropsychology etc to create new learning worlds that boost human learning to meet the
demands of the 21st century.