计算机专业英语 教学课件 ppt 作者 霍宏涛 Chapter1.pptVIP

Professional English in Computer Field Chapter One The Fundamental of Computers 内容 正文 Computers Types The Year 2038 Problem 阅读材料 History of Electronic Digital Computers Cable vs. DSL 1-1 Computers Types Computer sizes and power Supercomputer and Mainframe Minicomputer Workstation Personal computer Key Words manipulate v. 操作，控制 well-defined adj. 明确定义的 store v.存储 retrieve v. 获取, 获得 machinery v. 机械装置 general-purpose computers 通用计算机 intermediate adj.中间的 conduit n.导线管 overlap n.重叠 mainframe n.大型计算机 moderate adj.中等的,适度的 spreadsheet n.电子表格程序 surf v.浏览，专指上网浏览，和internet连用 fray n.竞争 onslaught n.猛攻 clone n.克隆，仿制，仿造 pin down 确定，明确 high-end adj.高端的 low-end adj.低端的 Notes In addition to these components, many others make it possible for the basic components to work together efficiently. Mainframe was a term originally referring to the cabinet containing the central processor unit. For nearly every other component, including the operating system, there are several options, all of which fall under the rubric of PC. 1-2 The Year 2038 Problem Key Words pun n.俏皮话 wrap around 回卷 odometer n.里程表 haywire adj.混乱的 lurk v.潜伏 pooh-pooh v.轻视 impending adj.即将发生的 plague v.折磨 Key Words legacy code 难以替换的代码 scratch n.什么都没有 backward compatibility 向后兼容 blindly adv.盲目地 computer-illiterate 不懂计算机的 scenario n.方案 doomsday n.最后的审判日 Notes A later generation of UNIX authors, fearful that stuffy, humorless corporate drones would remove this cherished pun, added a programmers comment inside the documentations source code that read, Take this out and a UNIX demon will dog your steps until the time_ts wrap around! time_t is never, ever at fault in any Year 2000 bug. Notes It would be too tedious to check everywhere; and besides, the extremely rare conditions that result in the functions failure would hardly ever happen in the real world. And the larger, more complex, and