##Adding and removing hardware
一：正文
When new hardware is purchased or when hardware is moved from one machine to another , the system must be configured to recognize and use that hardware . Hardware-support chores can range from the simple task of adding a printer to the more complex job of adding a disk array.
Now that virtualization has arrived in the enterprise computing sphere , hardware configuration can be more complicated than ever . Devices may need installation at several layers of the virtualization stack, and the system administrator may need to formulate policies that allow the hardware to be shared securely and fairly.
二：單詞
*：purchased [ˈpɜ:tʃəs] 採購，購買
*：recognize [ˈrekəgnaɪz] 識別
*：chores [t’ʃɔ:z] 零星工作
*：range from 從。。變化到
*：complex [ˈkɒmpleks] 複雜的；難懂的
*：arrive in 到達
*：sphere [sfɪə®] 範圍
*：complicated [ˈkɒmplɪkeɪtɪd] 混亂的，麻煩的，結構複雜的
*：several [ˈsevrəl] 各自的，分別的
*：layers ['leɪəs] 層次
*：stack [stæk] 堆
*：formulate [ˈfɔ:mjuleɪt] 構想出，規劃
*：policies 策略
*：securely [sɪ’kjʊəlɪ] 安全
*：fairly [ˈfeəli] 公平的
三：全文翻譯
購買新硬體或把硬體從一臺機器移到另外一臺機器上，必須配置系統，使之識別並使用該硬體。硬體支援的任務可能很簡答，例如新增印表機，也可能是更復雜的任務，例如新增磁碟陣列。
現如今，虛擬化技術已經運用到企業級計算環境中來了，硬體的配置也比以前更復雜。裝置可能要安裝在虛擬化層次結構中的多個層面，系統管理員需要制定規範的策略，讓硬體能夠安全和公平的被共享。