云计算新纪元：Web服务与图书馆信息系统

4星 · 超过85%的资源需积分: 49 100 浏览量更新于2024-09-29 5 收藏 219KB PDF 举报

"这篇资源是关于计算机专业的毕业设计，主要探讨了云计算领域的最新发展，特别是‘一种新的云计算方法’。文章引用了多个业界巨头在云计算服务上的贡献，如Sun、Salesforce.com、IBM、Microsoft、Google、Amazon以及Yahoo!，并提到了Web服务和小部件在图书馆信息系统中的应用。" 在当前的数字化时代，云计算已经成为计算和存储领域的一个关键组成部分。云计算（Cloud Computing）是一种基于互联网的计算方式，它允许用户通过网络访问共享的计算资源，而无需直接拥有这些资源。这种模式大大降低了企业和个人用户的成本，同时提供了更高的灵活性和可扩展性。描述中提到的"一种新的云计算方法"可能涉及对现有云服务模式的创新或优化，比如提升服务质量、增强安全性、提高能效或改进用户体验。具体的方法可能包括新的架构设计、服务交付模型、资源调度策略等。文章提到了几个云计算的先驱者和他们的贡献。例如，Sun Microsystems提出的“网络就是计算机”的理念，预示了云计算的未来。Salesforce.com是早期提供软件即服务（SaaS）的公司，让用户可以按需使用软件。IBM和微软在21世纪初开始提供Web服务，微软的Azure平台提供了操作系统和开发工具，而Google则推出了Google Docs，这是一种基于Web的办公套件，包括文字处理、电子表格和演示文稿应用。Google AppEngine则允许开发者在Google的基础设施上运行Python或Java应用。 Amazon的EC2（弹性计算云）和S3（简单存储服务）是知名的云服务，提供硬件级别的支持。Yahoo!采用Apache Hadoop框架，允许用户处理大量数据，展示了云计算在大数据处理上的能力。这些例子表明，云计算提供商在各个层面提供服务，从硬件基础设施（如Amazon和Sun），到平台服务（如Microsoft Azure），再到应用程序和服务（如Google Docs和Salesforce.com）。这种多样化的服务层次使得云计算成为了一个涵盖广泛、深度参与各行业的技术。这篇毕业设计的外文文献将深入探讨云计算的新方法，可能涉及技术实现、商业模式、安全性和隐私保护、资源管理等多个方面。对于计算机专业的学生来说，这将是一次了解和研究云计算前沿技术的好机会。

weB services ANd widGets For liBrArY iNFormAtioN sYstems | HAN 87oN tHe clouds: A New wAY oF comPutiNG | HAN 87

shape cloud computing. For exam-

ple, Sun’s well-known slogan “the

network is the computer” was estab-

lished in late 1980s. Salesforce.com

has been providing on-demand

Software as a Service (SaaS) for cus-

tomers since 1999. IBM and Microsoft

started to deliver Web services in

the early 2000s. Microsoft’s Azure

service provides an operating sys-

tem and a set of developer tools and

services. Google’s popular Google

Docs software provides Web-based

word-processing, spreadsheet, and

presentation applications. Google

App Engine allows system devel-

opers to run their Python/Java

applications on Google’s infrastruc-

ture. Sun provides $1 per CPU hour.

Amazon is well-known for provid-

ing Web services such as EC2 and

S3. Yahoo! announced that it would

use the Apache Hadoop frame-

work to allow users to work with

thousands of nodes and petabytes

(1 million gigabytes) of data. These

examples demonstrate that cloud

computing providers are offer-

ing services on every level, from

hardware (e.g., Amazon and Sun),

to operating systems (e.g., Google

and Microsoft), to software and ser-

vice (e.g., Google, Microsoft, and

Yahoo!). Cloud-computing provid-

ers target a variety of end users,

from software developers to the

general public. For additional infor-

mation regarding cloud computing

models, the University of California

(UC) Berkeley’s report provides a

good comparison of these models by

Amazon, Microsoft, and Google.

As cloud computing providers

lower prices and IT advancements

remove technology barriers—such

as virtualization and network band-

width—cloud computing has moved

into the mainstream.

Gartner stated,

“Organizations are switching from

factors related to cloud computing:

infinite computing resources avail-

able on demand, removing the need

to plan ahead; the removal of an

up-front costly investment, allowing

companies to start small and increase

resources when needed; and a system

that is pay-for-use on a short-term

basis and releases customers when

needed (e.g., CPU by hour, storage by

day).

National Institute of Standards

and Technology (NIST) currently

defines cloud computing as “a model

for enabling convenient, on-demand

network access to a shared pool of

configurable computing resources

(e.g. network, servers, storage, appli-

cations, and services) that can be

rapidly provisioned and released

with minimal management effort or

service provider interaction.”

As there are several definitions

for “utility computing” and “cloud

computing,” the author does not

intend to suggest a better definition,

but rather to list the characteristics of

cloud computing. The term “cloud

computing” means that

 customers do not own network

resources, such as hardware,

software, systems, or services;

 network resources are provided

through remote data centers on a

subscription basis; and

 network resources are delivered

as services over the Web.

This article discusses using cloud

computing on an IT-infrastructure

level, including building virtual server

nodes and running a library’s essen-

tial computer systems in remote data

centers by paying a fee instead of run-

ning them on-site. The article reviews

current cloud computing services,

presents the author’s experience, and

discusses advantages and disadvan-

tages of using the new approach.

All kinds of clouds

Major IT companies have spent bil-

lions of dollars since the 1990s to

On the Clouds:

A New Way of

Computing

This article introduces cloud computing

and discusses the author’s experience “on

the clouds.” The author reviews cloud

computing services and providers, then

presents his experience of running mul-

tiple systems (e.g., integrated library sys-

tems, content management systems, and

repository software). He evaluates costs,

discusses advantages, and addresses some

issues about cloud computing. Cloud com-

puting fundamentally changes the ways

institutions and companies manage their

computing needs. Libraries can take advan-

tage of cloud computing to start an IT

project with low cost, to manage computing

resources cost-effectively, and to explore

new computing possibilities.

cholarly communication and

new ways of teaching provide

an opportunity for academic

institutions to collaborate on pro-

viding access to scholarly materials

and research data. There is a grow-

ing need to handle large amounts

of data using computer algorithms

that presents challenges to libraries

with limited experience in handling

nontextual materials. Because of

the current economic crisis, aca-

demic institutions need to find ways

to acquire and manage computing

resources in a cost-effective manner.

One of the hottest topics in IT is

cloud computing. Cloud computing

is not new to many of us because we

have been using some of its services,

such as Google Docs, for years. In his

latest book, The Big Switch: Rewiring

the World, from Edison to Google, Carr

argues that computing will go the

way of electricity: purchase when

needed, which he calls “utility

computing.” His examples include

Amazon’s EC2 (Elastic Computing

Cloud), and S3 (Simple Storage)

services.

Amazon’s chief technol-

ogy officer proposed the following

Yan HanTutorial

Yan Han (hany@u.library.arizona.edu) is

Associate Librarian, University of Arizona

Libraries, Tucson.

下载后可阅读完整内容，剩余6页未读，立即下载

tangxiaobaooqq

粉丝: 0
资源: 2

云计算新纪元：Web服务与图书馆信息系统

计算机毕业论文参考文献(中英文对照)

计算机毕业设计中文 英文 参考文献50个

计算机专业的文献综述例子

计算机毕设外文文献及中文翻译

合肥工业大学毕设外文文献翻译及汉语对照

本科毕设 外文翻译 计算机专业 带外文PDF及中文翻译

毕设外文翻译

自动化专业通用的毕设外文翻译

计算机专业毕设精选-ASP基于WEB在线直销商城(论文+源代码+文献综述+外文翻译).rar

计算机专业毕设精选-ASP求职招聘网站设计(源代码+论文+开题报告+外文翻译+文献综述).rar

最新资源

计算机毕业设计中文英文参考文献50个

本科毕设外文翻译计算机专业带外文PDF及中文翻译