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1、Unit 3 Operating System,WARM-UP A Tick the words that are associated with operating system of a computer. hardware monitor Windows XP Unix IOP Linux program Windows 7 DOS Windows 95 CPU Windows NT,B Answer the following questions. 1. Do you often store important information in your computer? 2. Do y
2、ou know antivirus software? Has your computer installed antivirus software? 3. Do you have the experience of losing the data in your computer? 4. Do you know the computer always needs to maintain? 5. Do you know how to recover the missing data?,Speaking Practice,Work in pairs and take turns to be To
3、m and the Jerry to practice the dialogue. Terrible！My Data Is Missing Tom: Whats wrong with you? You looked anxious. Jerry: I have some important data stored in the computer, but now all has missed. Can you help me to recover the data? Tom: Though Im not professional, but I can give you some advice.
4、 Jerry: Thank you in advance. Tom: Have you deleted the data? Jerry: No. Tom: Have you saved it?,Terrible！My Data Is Missing,Tom: Have you saved the data? Jerry: Yes, of course. Tom: If so, maybe your computer infected virus. Jerry: Virus？Then what should I do? Tom： You should install antivirus soft
5、ware on the computer，and antivirus regularly later, then your computer will be safer. Jerry: Oh, I know. Thank you. Tom: You are welcome.,New Words and Expressions,graphical rfikl adj. 绘成图画似的，画形的 interface intfeis n.（人机）界面（尤指屏幕布局和菜单） humanize hju:mnaiz v. 赋予人性，使通人情，教化 compatibility kmptblt n. 通用性，兼容
6、性 expansion ikspnn n. 扩大，扩张，扩展，膨胀 substitute sbstitju:t n. 替代物，代用品 process pruses n. 过程，进程 initial inil adj. 最初的，开始的 target t:it n. (欲达到的)目标 multitasking n. 多(重)任务处理 version v:n n. (软件)版本,overlap uvlp v.（物体）部份重叠，交叠 milestone malstn n. 重要阶段，里程碑 monopoly mnpli n. 垄断，专卖 commercial km:l adj. 商业的，商务的 bou
7、nd baund v. 形成(或构成)的边界(或疆界、界线)；成为的界线 procedure prsi:d n. 程序 simultaneously samltensl adv. 同时地 parallel prlel adj. 平行的，并行的 release rili:s vt. 发行 previous pri:vjs adj. 先前的，以前的 application plikein n. 运用，应用 intimate intimeit adj. 亲密的,Intensive Reading,Read the following passage, trying to answer the que
8、stions in the box. 1. Can you introduce the developing process of Windows? 2. Which version of Windows is a milestone? 3. What is the advantage of Windows?,Microsoft Windows,Windows is an operating system that developed by Microsoft. It adopted graphical user interface, which is more humanized than
9、the other operating system such as DOS. Windows is an operating system that is most widely used in the world and has strongest compatibility, with about 90% of the market share. It is the expansion and substitute of Microsofts disk operating system (MS-DOS). It allows users through the instructions
10、and click on the equipment, such as mouse, instead of keyboard to input orders. The development of Microsoft Windows experienced a long process, from the original Windows 1.0 to the newest Windows 7.,CH,Microsoft Windows,From 1983，Microsoft company began to develop Windows system, the initial target
11、 is to provide a multitasking graphical user interface on the basis of MSDOS. The first version of Windows 1.0 was published in 1985; it is graphical user interface system software. In this version, the window is a flat, namely next to each other, not displays overlapped. Until 1990, Windows 3.0 is
12、an important milestone, which determined the monopoly in the PC areas by its commercial success. The basic form of the popular interface window nowadays was also determined from the Windows 3.0. Part of the reason is that it is bound in the new PC in advance.,CH,Microsoft Windows,In 1993, Microsoft
13、rolled out Windows NT (new technology). Windows NT provides 32-bit multitasking, which makes the computer operate several procedures simultaneously or parallel at a high speed. In 1995, Microsoft released a new version called Windows 95 for personal computer. Compared with previous versions, the mod
14、eling of Windows 95 is more graceful, and simpler. However, compared with the operating system facing the command, graphics system needs more hardware, such as the faster CPU, more memory and monitor with higher quality.,CH,Microsoft Windows,Currently, the most widely used version of the Windows is
15、Windows XP, released on October 25, 2001. The latest version is Windows 7 for personal computers and Windows Server 2008 R2 for servers. Operating system develops rapidly. Windows were meant to Windows. Before the development of the Windows, we can only see boring digital, after the development of W
16、indows system, it makes us more directly to the computer application, more intimate, and easier to use.,CH,Exercises,I. Mark the following sentences with T (true) or F (false) according to the passage. 1. Windows is more humanized than DOS. 2. Windows allows users to use keyboard to input orders. 3. The development of Microsoft Windows is very easy. 4.
