计算机专业英语 作者 霍宏涛 Chapter4.pptVIP

Professional English in Computer Field Chapter Four Operating System 内容 正文 Operating System Linux 阅读材料 Porting Window CE Operating System to Broadband Enabled STB Devices Windows Vista 1 Operating System 1 Operating System 1 Operating System Key Words lump n. 块 withal adv. 而且 abundantly adv. 充分地 cathode ray tube 阴极射线管 shell 命令行解释器 exhaustive adj. 详尽无疑的 monolithic System 整体式系统 trap instruction 陷阱指令 console n. 平台 peculiarity n. 特性 concentric ring 同心圆 facet n. 方面 crash v. 崩溃 Notes Writing programs that keep track of all these components and use them correctly, let alone optimally, is an extremely difficult job The operating system is that portion of the software that runs in kernel mode or supervisor mode. It is protected from user tampering by the hardware (ignoring for the moment some of the older microprocessors that do not have hardware protection at all). Notes The limited speed and memory capacity forced programmers to write hand tuned assembly language programs. The design of Java was a more conservative version of ideas explored many years earlier in the Smalltalk community, but the widespread adoption of languages that supported features like garbage collection and strong static typing was a major change in programming practice. 2 Linux Key Words prominent adj. 著名的 enthusiast n. 爱好者 port v. 移植 controversial adj. 有争议的 litigation n. 诉讼 actionable adj. 可控告的 portability n. 可移植性 copyleft n. 对称版权 permissive adj. 宽容的 royalty n. 专利税 loose-knit adj. 松散的 revel v. 着迷 Key Words stereotype n. 陈规，陋习 dispel v. 消除 profusion n. 丰富 on par with 等同的 cornerstone n. 基础 set-top box n. 机顶盒 handheld device 手持设备 lock-in 锁定 thin client 瘦客户端 IRC Internet Relay Chat的缩写 Notes The goal of the GNU project is to produce a Unix-compatible operating system consisting entirely of free software. Most general-purpose Linux distributions rely on GNU libraries and tools. Torvalds has stated that he onl