• apache-tomcat-6.0.18.exe

    Apache Tomcat is an implementation of the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed under the Java Community Process

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    2012-01-09
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  • Migrating Enterprise Storage Applications to the Cloud

    Cloud computing has emerged as a model for hosting computing infrastructure and outsourcing management of that infrastructure. It offers the promise of simplified provisioning and management, lower costs, and access to resources that scale up and down with demand. Cloud computing has seen growing use for Web site hosting, large batch processing jobs, and similar tasks. Despite potential advantages, however, cloud computing is not much used for enterprise applications such as backup, shared file systems, and other internal systems. Many challenges need to be overcome to make cloud suitable for these applications, among them cost, performance, security, and interface mismatch.

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    2012-01-09
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  • Configure选项简介

    'configure'脚本有大量的命令行选项.对不同的软件包来说,这些选项可能会有变化,但是许多基本的选项是不会改变的.带上'--help'选项执行'configure'脚本可以看到可用的所有选项.尽管许多选项是很少用到的,但是当你为了特殊的需求而configure一个包时,知道他们的存在是很有益处的.下面对每一个选项进行简略的介绍:

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    2011-12-28
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  • Jquery 15 天教程

    为什么我改变我我对 jQuery 的看法,以及为什么你要考虑去使用它? 很简单, 只要你看一眼过使用 jQuery 的页面你就会发现它是如此的简单易用.只用很少 的几行,就能表现出很优雅的效果. 有一天当我突然看到一些用 jQuery 写的代 码时我一下子豁然开朗了. 早茶的过程中,我例行公务的去翻阅我的订阅,去看 每日必看的设计博客的时候我看到了一个用 jQuery 写的 javascript 的例子.事 实证明,这些代 码还是有些和浏览器关联的 bug,不过这些概念还是我以前从来 没有见过的.

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    2011-12-14
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  • 分布式网络存储Distributed File Systems--Concepts and Examples.PDF

    The purpose of a distributed file system (DFS) is to allow users of physically distributed computers to share data and storage resources by using a common file system. A typical configuration for a DFS is a collection of workstations and mainframes connected by a local area network (LAN). A DFS is implemented as part of the operating system of each of the connected computers. This paper establishes a viewpoint that emphasizes the dispersed structure and decentralization of both data and control in the design of such systems. It defines the concepts of transparency, fault tolerance, and scalability and discusses them in the context of DFSs. The paper claims that the principle of distributed operation is fundamental for a fault tolerant and scalable DFS design. It also presents alternatives for the semantics of sharing and methods for providing access to remote files. A survey of contemporary UNIX@-based systems, namely, UNIX United, Locus, Sprite, Sun’s Network File System, and ITC’s Andrew, illustrates the concepts and demonstrates various implementations and design alternatives. Based on the assessment of these systems, the paper makes the point that a departure from the approach of extending centralized file systems over a communication network is necessary to accomplish sound distributed file system design. Categories and Subject Descriptors: C

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    2010-04-12
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  • 嵌入式系统linux下触摸屏实验报告

    嵌入式实验报告,内容是在linux下完成触摸式手机的功能触摸屏工作原理、ADS7843模/数转换芯片

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  • 笔耕不辍

    累计2年每年原创文章数量>=20篇
  • 持续创作

    授予每个自然月内发布4篇或4篇以上原创或翻译IT博文的用户。不积跬步无以至千里,不积小流无以成江海,程序人生的精彩需要坚持不懈地积累!
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