1.1.2 版

讲师

David J. Malan
malan@post.harvard.edu
+1-617-523-0925

大纲

这门课程全部和理解有关：当你打开计算机，理解里面在运行什么；为什么技术支持时不时要你重启计算机；理解自己在互联网上所执行的任何操作是如何被监视的；理解自己的计算机是如何仅仅刚开启就被一个蠕虫病毒感染了。在课程中，我们去除掉计算机和互联网以及相关专业术语的神秘性，如此一来，学员就不仅了解了如何处理相关问题，还能理解它们如何运作及其原理。学员们学完课程后会得到新的词汇，以为接下来对计算机和互联网深层次研究做准备。课题可以包括硬件，软件，互联网，多媒体，安全，网站开发，编程和网络经济等。当地学员通过课程可选的研讨实践，有机会拆装计算机，并可以运用附加硬件对计算机进行升级，更有效地在互联网中搜索信息，新建无线网络，创作数码图像，根除间谍软件，进行网页设计等等。习题集也对在线学员提供类似的机会。这门课程适用于那些没有什么计算机经验的学员以及那些每天使用计算机的学员。

要求

你需要参加或者观看所有的讲座，完成共9次习题集，参加两次测验，并做一个期末专题。

评分

你的期末成绩评分将根据以下几项。

	习题集		40%
	测验 1		20%
	测验 2		20%
	期末专题		20%

网站

本课程的网址如下。


访问这个网址，可以查看课程的公告，获得讲座的音像资料，浏览课程的讨论存档，下载讲义和软件及其他资源链接等等。

如果你通过互联网学习这门课程，这个网站将是带你进入课堂的最佳窗口。在这里你可以找到课程中所需要的任何学习资料。

教员

关于课程的教员的当前联系方式，请参考课程网页中的相关链接。

方便起见，如果想要对所有教员提出问题和意见，邮件发至

教材

课程没有指定教材。

但建议你准备4本书作为一套课程学习书籍。我们为你准备了两套作为选择。每套书中推荐阅读的学习进度在关于讲座讨论的文件里可以找到。

第一套特别针对完全初学者——对计算机及互联网较陌生并感到生疏的学员。第二套则适合对计算机及互联网相对有所了解的学员。这两套书目均囊括了大部分课程内容。而第二套更多地涉及到具体技术，对希望接受更多挑战的学员会更具吸引力。

你能在哈佛合作商店（麻省大街1400号哈佛广场）里买到所有这些书，也可以访问诸如Amazon.com等网站购买。

以下两本书也推荐用以参考。这两本书尽管不是必读书目，但对于课程内容的理解会有所帮助，在学习之余有着不错的参考价值。你同样可在哈佛合作商店（麻省大街1400号哈佛广场）里买到，也可访问诸如Amazon.com等网站购买。

格罗斯曼图书馆

格罗斯曼图书馆位于瑟弗厅311，是兼具藏书－阅读和学习功能的图书馆，开放对象是所有进修学校的学生。该课程的每本推荐阅读书籍已经收藏在该图书馆，供你在舒适的环境中阅读，但不但借出。

格罗斯曼图书馆的开放期间是2006年9月18日（星期一）到2007年1月22日（星期一），具体时间如下：

	星期一到星期四：		中午12:00 －晚上10:00 （美国东部时间）
	星期五：		中午12:00 －下午6:00 （美国东部时间）
	星期六：		上午10:00 －下午6:00 （美国东部时间）
	星期日：		中午12:00 －下午6:00 （美国东部时间）

格罗斯曼图书馆于大学的各个节假日关闭。该馆电话号码为：(617) 495-4163.

讲座

讲座于科学中心A座举行，时间是大多数星期三下午5:30 到7:30（美国东部时间）。

除了第3、第13次讲座，所有讲座都将进行录像和数字化，并可在讲座结束后几天内通过播客获得（可下载到iTunes 和 iPods）或通过该课程的网页以MP3、RealAudio、RealVideo和QuickTime格式下载。这些数字资料张贴后，将一直保存到学期结束。虽然这些讲座内容是让通过互联网学习的学生用的，但欢迎通过校园学习该课程的同学在无法上课时收看与收听。欢迎所有同学通过收听收看这些音像资料复习讲座内容。

这些资料最好通过互联网高速连接（如有线或DSL）来下载与播放。拨号连接虽然可行（特别是在收听纯录音资料时），但效果不够理想。

讲座日程表和推荐阅读材料如下：

小组

小组为本地学生提供对计算机和互联网进行实际操作、同时教职人员在旁边指导的机会。有些小组可能会像讲座一样进行录音，虽然只是采用纯音频制式。

学期大多数的周都采用小组的形式。在课程的第一次讲座，本地学生报名申请参加具体的小组（例如，小组的日期、时间和地点）。第二次讲座以后开始小组活动。

远程学生不能到校，没有对计算机和互联网进行实际操作，并获得教职人员从旁指导的机会。但这门课程理论性与实践性一样强。其目的在于使本地学生和远程学生都熟悉新的专业用语，为今后进一步探索计算机和互联网作准备。

小组活动日程安排如下：

研讨会

掌握计算机需要花费时间。虽然每周的小组活动使本地学生能在教师指导下进行实践，但总有更多的知识需要学习。因而，为了补充每周的小组活动，我们在学期进行过程中的大多数周都开展针对不同主题的研讨会。有些研讨会可能会像讲座一样进行录音。研讨会地点届时会予以公布。个人可以自由决定是否参加，但我们提倡学生参加。

远程学生不能到校，没有对计算机和互联网进行实际操作的机会。但这门课程理论性与实践性一样强。其目的在于使本地学生和远程学生都熟悉新的专业用语，为今后进一步讨论计算机科学作准备。

研讨会日程安排如下：

本周录像

除了提供讲座录像外，该课程一般会在周三发布4部由教职员制作的“本周录像”，每部时长5到15分钟，内容是最近一次讲座的主题。这些录像可以通过播客 (可下载到 iTunes 和iPods)下载，或以Flash 和QuickTime格式在课程网页下载。

习题集

大多数周都会发放习题集，两周后或稍长时间交回。习题集必须用课程网页上dropbox进行递交，除非某个习题集允许学生用书面形式递交。除非发生紧急情况，否则不得延期递交。技术问题不属于紧急情况。未获延期许可而迟交习题集将受到下列处罚：迟交1小时以内成绩递减5%；迟交2小时以内成绩递减10%；迟交3小时以内成绩递减25%；迟交4小时以内成绩递减50%；迟交4小时以上成绩递减100%；迟交情况由服务器端的时间戳标确定。

计算最后成绩时，将去掉最低分。

注意：许多习题集中的问题需要上网查询，有些习题集可能需要（没有通过互联网学习的学生）到校现场解答，有一个习题集需要去你当地的计算机店解答。

习题集的日程安排如下：

测验

本课程将有两场、分别为60分钟的测验。第一场考试时间在2006年10月25日（星期三）讲座的第一个小时进行，涵盖2006年9月22日（星期三）到2006年10月18日（星期三）的授课内容。第二场考试时间在2006年12月13日（星期三）讲座第一个小时进行，涵盖2006年11月1日（星期三）到2006年12月6日（星期三）的授课内容。

测验将于下午5:30（美国东部时间）准时开始。每场考试后继续上课60分钟。

住在新英格兰地区以外、不能到校参加考试的远程学生必须找到一家愿意以安全的方式为其开设考试的当地学校。进修学校注册主任负责向该校寄送考卷并在考完后收回考卷等后勤事宜。但是，所有远程教育学生都必须在考试日期前不少于4周时间就这些后勤事宜同教员联系核实。此外，他们还必须在每场考试前至少2周填写并递交下列网址提供的表格。

复习课

2006年10月21日（星期六），上午11:00到下午1:00 （美国东部时间），教学人员将讲授首场考试的复习内容。2006年12月9日（星期六），上午11:00到下午1:00 （美国东部时间），教学人员将讲授第二场考试的复习内容。

届时公布这些复习课的地点。

学生可以自主选择是否参加这些复习课，但我们提倡他们参加。

期末专题

本课要求学生提交一份网站形式的期末专题，该作业必须具备规定的特征。

期末专题包括两部分。第一部分递交的最后期限是2006年11月29日（星期三）下午5:30（美国东部时间），要求以书面报告形式说明专题内容。第二部分递交的最后期限是2007年1月22日（星期一）下午9:35（美国东部时间），要求实际完成作业内容。

期末专题不得延期上交。除非发生紧急情况，否则不得延期递交。技术问题不属于紧急情况。未获延期许可而迟交习题集将受到下列处罚：迟交1小时以内成绩递减5%；迟交2小时以内成绩递减10%；迟交3小时以内成绩递减25%；迟交4小时以内成绩递减50%；迟交4小时以上成绩递减100%；迟交情况由文件的时间戳标确定。

期末专题指南于2006年11月1日（星期三）发布。

教员精选

成为一名计算机专家（称为：书呆子）不是一朝一日的事。但一些电影能够提供参考。本学期完整地看完一部教员精选的影片（片名列在课程网页上），写一篇至少200字的评论，寄到cscie1@fas.harvard.edu，就能在最近必须递交的习题集中获得5分的加分！注意：评论必须表明你是持肯定还是否定态度！还必须说明该电影的内容与E-1的关系！本学期你可以尽可能多看那些精选电影，但每个习题集只须递交1篇评论。欢迎你与其他同学一起看片，但他们每人都必须递交一篇评论。

请在你当地的图书馆或音像店找到这些精选影片，但不要忘记Blockbuster.com 和Netflix.com之类的网站！

远程教育

如果你是通过互联网学习本课的，那么请记住：我们希望你尽可能像现场学生那样参与其中。不过，鉴于我们之间距离遥远，你脸上偶尔露出的困惑表情我们无法看到。我们也看不见你举手。因此，请你让我们尽可能给你提供帮助。请随时给我们写信、打电话或让我们给你打电话。尽管我们可能永远不能握手，但我们非常希望能够与你相识。

学术诚实

你为了完成本课要求所做的所有作业必须亲自完成。参看或抄袭他人作业（即使是公开目录中列出的材料）及从书籍、杂志、网站与其他出版物中剽窃（即使是部分内容）但在递交时谎称是自己的作品，这是一种学术欺诈；把自己的作业（即使是部分内容）借给同学参阅也是学术欺诈行为。

同样，重复递交作业也属于学术欺诈：不得把同样或近似的作业同时在本班与其他班上交。同样属于学术欺诈的，是在本学期没有看完整部影片却递交精选影片的评论以获得加分的行为。

所有作弊行为都将受到严厉处罚。

欢迎你与其他人讨论课程内容，以便更好地理解。但是，必须独立完成所有习题集、考试和期末专题。你在做习题集、考试或期末专题时遇到具体问题，请与我或其他教师联系。

平台

本课程在很大程度上独立于具体的计算平台：无论你使用的是Linux，Mac OS还是 Windows都无关紧要。本课教授和使用的软件都有适合这三种平台的格式。

恶劣天气

如果出现恶劣天气，你可以拨打进修学校的一般信息电话：(617) 495-4024，也可拨打哈佛大学新闻热线：(617) 496-6397，以核实课是否已经取消。

另外，还可以访问课程网页或下列网址：


停课公告还将通过本地电台WKRO-AM (680 千赫)，WBZ-AM (1030 千赫)，WBUR-FM (90.9 兆赫), 和WCRB-FM (102.5兆赫)及本地电视台WBZ (第4频道), WCVB (第5频道), 和WHDH (第7频道)播放。

建议你查询多个信息源，以防有的信息源当时没有公布。

无学分

如果你学该课不是为了取得学分，就无须递交习题集、参加考试与完成期末专题。然而，该课设计的所有作业都是为了帮助你理解与记忆讲座与必读阅读材料的内容。因此，我们鼓励你尽可能完成全部作业。你将得到的报偿是教师批改并评价你所递交的作业。

version 1.1.2

Instructor

David J. Malan
malan@post.harvard.edu
+1-617-523-0925

Synopsis

This course is all about understanding: understanding what's going on inside your computer when you flip on the switch, why tech support has you constantly rebooting your computer, how everything you do on the Internet can be watched by others, and how your computer can become infected with a worm just by turning it on. In this course we demystify computers and the Internet, along with their jargon, so that students understand not only what they can do with each but also how it all works and why. Students leave this course armed with a new vocabulary and equipped for further exploration of computers and the Internet. Topics include hardware, software, the Internet, multimedia, security, website development, programming, and dotcoms. Through optional hands-on sections and workshops, local students have opportunities to dissect as well as upgrade a computer with additional hardware, search the Internet more effectively, build a wireless network, create digital images, eradicate spyware, and design webpages. Problem sets offer online students similar opportunities. This course is designed both for those with little, if any, computer experience and for those who use a computer every day.

Expectations

You are expected to attend or watch all lectures, complete nine problem sets, take two exams, and produce a final project.

Grades

Your final grade will be determined as follows.

	Problem Sets		40%
	Exam 1		20%
	Exam 2		20%
	Final Project		20%

Website

The address of this course's website follows.


Visit this site to read course-wide announcements, access recordings of lectures, browse archives of course-wide discussions, download handouts and software, and follow links to other resources.

If you are taking this course via the Internet, this website will be your window into the course's classrooms. Everything that you will need to succeed in this course will be available for you there.

Staff

For current contact information for the course's staff, follow the appropriate link on the course's website.

For the sake of expediency, if you wish to pose a question or comment to the entire staff, simply email the address below.

Books

No books are required for this course.

However, we do recommend that you procure a set of four books; we offer you a choice of two such sets. A schedule of recommended readings from each set is provided in this document's discussion of lectures.

The first set is designed for true beginners—students relatively unfamiliar or uncomfortable with computers and the Internet. The second set is designed for students more savvy with computers the Internet. Both sets cover much of the course's material; the second set, however, provides additional technical detail which may appeal to students eager for additional challenge.

Each of the books in these sets is available for purchase either at the Harvard Coop, located in Harvard Square at 1400 Massachusetts Avenue, or at such sites as Amazon.com.

The following two books are also recommended for this course. Although not required reading, these texts may assist in your comprehension of course material and serve as valuable reference materials after the course's completion. Each is available for purchase either at the Harvard Coop, located in Harvard Square at 1400 Massachusetts Avenue, or at such sites as Amazon.com.

Grossman Library

Grossman Library, located in Sever Hall 311, is a reserve-reading and study library open to all Extension School students. Each of this course's recommended texts has been placed on reserve in this library for you to read within the comfort of the library; books may not be checked out.

Grossman Library is open Monday, 18 September 2006, through Monday, 22 January 2007, according to the following schedule

	Monday through Thursday		12:00 P.M. ET - 10:00 P.M. ET
	Friday		12:00 P.M. ET - 6:00 P.M. ET
	Saturday		10:00 A.M. ET - 6:00 P.M. ET
	Sunday		12:00 P.M. ET - 6:00 P.M. ET

Grossman Library is closed on University holidays. The library's phone number is (617) 495-4163.

Lectures

Lectures will take place in Science Center A on most Wednesdays from 5:30 P.M. ET until 7:30 P.M ET.

With the exception of Lectures 3 and 13, each lecture will be recorded, digitized, and made available within days of its delivery via podcast (for download to iTunes and iPods) and via the course's website in MP3, RealAudio, RealVideo, and QuickTime formats. Once posted, these recordings will remain available until semester's end. Although the recordings are intended to be used by students taking the course via the Internet, students taking the course on campus are welcome to watch or listen to the recordings in the event that their attendance at one or more lectures is not possible. All students are welcome to watch or listen to the recordings for the purpose of reviewing the content of particular lectures.

These recordings are best downloaded or played via a high-speed (e.g., cable or DSL) connection to the Internet. Dial-up connections, though possible (especially for audio-only recordings), are not ideal.

A schedule of lectures and recommended readings follows.

Sections

Sections provide local students with opportunities to work hands-on with computers and the Internet with a teaching fellow by their side. Some sections may, like lectures, be recorded, albeit in audio-only format.

Sections take place most weeks during the term. During the course's first lecture, local students sign up for a specific section (i.e., day, time, and location). Sections begin meeting following the second lecture.

Distant students unable to travel to campus cannot enjoy these opportunities to work hands-on with computers and the Internet with a teaching fellow. But this course is as conceptual as it is practical. It is designed to arm local and distant students alike with a new vocabulary and to equip both for further exploration of computers and the Internet.

A schedule of sections follows.

Workshops

Mastering computers takes time. Although weekly sections afford local students the opportunity for guided exploration, there is always more to learn. To supplement weekly section activities, then, we offer workshops on various topics on most weekends during the term. Some workshops may, like lectures, be recorded. Workshops' locations will be announced. Attendance at these workshops is optional but encouraged.

Distant students unable to travel to campus cannot enjoy these opportunities to work hands-on with computers and the Internet with the teaching fellows. But this course is as conceptual as it is practical. It is designed to arm local and distant students alike with a new vocabulary and to equip both for further exploration of computer science.

A schedule of workshops follows.

Videos of the Week

In addition to videos of lectures, the course will also release on most Wednesdays a volume of "videos of the week," bite-sized segments produced by the staff on topics related to the most recent lecture. These videos will be available via podcast (for download to iTunes and iPods) and via the course's website in Flash and QuickTime formats.

Problem Sets

Problem sets will be distributed most weeks and be due two or more weeks later. Problem sets must be submitted electronically via the dropboxes on the course's website unless a problem set permits submission on paper. Extensions for problem sets will not be granted, except in cases of emergency. Technical difficulties will not constitute emergencies. Problem sets submitted late without extension will be penalized as follows: submissions up to one hour late will incur a penalty of 5%; submissions up to two hours late will incur a penalty of 10%; submissions up to three hours late will incur a penalty of 25%; submissions up to four hours late will incur a penalty of 50%; submissions more than four hours late will incur a penalty of 100%. Lateness of submissions will be determined by server-side timestamps.

When computing your final grade, we will drop your lowest score.

Be aware that many questions in problem sets require Internet access, some problem sets may require (of students not taking the course via the Internet) a trip to campus, and one problem set will require a trip to a computer store local to you.

A schedule of problem sets follows.

Exams

This course has two, 60-minute exams. The first exam will take place in lieu of the first hour of lecture on Wednesday, 25 October 2006, and will cover lecture topics from Wednesday, 22 September 2006 through Wednesday, 18 October 2006. The second exam will take place in lieu of the first hour of lecture on Wednesday, 13 December 2006, and will cover lecture topics from Wednesday, 1 November 2006 through Wednesday, 6 December 2006.

These exams will begin promptly at 5:30 P.M. ET. Each exam will be followed by a 60-minute lecture.

Distant students who live outside of New England and cannot travel to campus for an exam are required to find a school local to them that is willing to administer that exam to them in a secure fashion. The Extension School's Registrar will handle the logistics of sending the exam to that school and retrieving it once taken. However, all such students are required to contact their teaching fellow regarding these logistics no fewer than four weeks prior to an exam's date. Moreover, they are required to complete and submit the form available at the address below at least two weeks prior to each exam.

Review Sessions

On Saturday, 21 October 2006, from 11:00 A.M. ET until 1:00 P.M. ET, the teaching fellows will hold a review session for the first exam. On Saturday, 9 December 2006, from 11:00 A.M. ET until 1:00 P.M. ET, they will hold a review session for the second exam.

The locations of these review sessions will be announced.

Attendance at these review sessions is optional but encouraged.

Final Project

This course requires that you produce a final project in the form of a website with a prescribed set of features.

The final project involves two parts. The first part, due by 5:30 P.M. ET on Wednesday, 29 November 2006, requires a written proposal for your project's content. The second part, due by 9:35 P.M. ET on Monday, 22 January 2007, requires actual production of your project.

Extensions for the final project will not be granted. Technical difficulties will not constitute emergencies. Final projects submitted late will be penalized as follows: submissions up to one hour late will incur a penalty of 5%; submissions up to two hours late will incur a penalty of 10%; submissions up to three hours late will incur a penalty of 25%; submissions up to four hours late will incur a penalty of 50%; submissions more than four hours late will incur a penalty of 100%. Lateness of submissions will be determined by files' timestamps.

Guidelines for the final project will be distributed on Wednesday, 1 November 2006.

Staff's Picks

Becoming a computer person (read: nerd) doesn't happen overnight. But certain movies can help. In fact, watch any of the staff's picks listed on the course's website in its entirety during this semester, write a review of at least 200 words, email your review to cscie1@fas.harvard.edu, and you'll earn five points of extra credit on the most recently due problem set! Be sure your review includes a thumb's up or down! And be sure to explain how the movie's content relates to E-1! You may watch as many of these picks as you wish during the term, but you may submit no more than one review per problem set. You are welcome to watch picks with other students, but each student must submit his or her own review.

Look for these picks at your local library or video store, but don't forget such sites as Blockbuster.com and Netflix.com!

Distance Education

If you are taking this course via the Internet, realize that it is our intention that you be as much a part of this course as are students taking the course on campus. However, given the distance between us, we cannot see the occasional perplexed look on your face. And we can't see you raising your hand. So, we ask that you help us help you as much as possible. Please do not ever hesitate to drop us a note, give us a call, or request a call. Though we may never shake hands, we would like very much to get to know you too.

Academic Honesty

All work that you do toward fulfillment of this course's expectations must be your own. Viewing or copying another individual's work (even if published in a world-accessible directory) or lifting material from a book, magazine, website, or other publication—even in part—and presenting said matter as your own constitutes academic dishonesty, as does showing or giving your work, even in part, to another student.

Similarly is dual submission academic dishonesty: you may not submit the same or similar work both to this class and to another. Similarly is submitting for extra credit a review of a pick that you have not watched in its entirety during this semester academic dishonesty.

All forms of cheating will be dealt with harshly.

You are welcome to discuss course material with others in order to better understand that material. However, you must do all problem sets, the exams, and the final project on your own. Contact me or a teaching fellow for help with a specific question on a problem set, an exam, or the final project.

Platforms

This course is designed to be largely independent of particular computing platforms: it does not matter if you are a user of Linux, Mac OS, or Windows. Almost all of the software taught and used by this course is available for all three platforms in some form.

Inclement Weather

In the event of inclement weather, you may call the Extension School's general information line at (617) 495-4024 or the Harvard University Newsline at (617) 496-6397 to find out whether a class has been cancelled.

Alternatively, you may visit the course's website or the address below.


Announcements will also be broadcast on local radio stations WKRO-AM (680 kHz), WBZ-AM (1030 kHz), WBUR-FM (90.9 MHz), and WCRB-FM (102.5 MHz) as well as on local television stations WBZ (channel 4), WCVB (channel 5), and WHDH (channel 7).

You are advised to consult more than one of these sources, lest one or more not be current.

Noncredit

If you are not taking this course for credit, you are not expected to submit problem sets, take the exams, or produce a final project. However, all of the work in this course is designed to facilitate your comprehension and retention of lecture and required reading materials. Consequently, you are encouraged to complete as much of the work as possible. In return, the staff will correct and comment on any work that you submit.