课程网址:https://www.coursera.org/learn/internet-history 学习笔记: Week 1: History - Dawn of Early Computing (1940 - 1960) War Time Computing and Conmmunication - High Stakes Research in Computing, and Communication 二战刺激了政府对各种科技的研究投入,由此促进了计算机技术的发展,其中就包括电子计算机…

前言 终于看完了接近一半课程的 History 的内容. 在这两周的时间里面,了解了互联网的起源,发展,以及现在互联网的情况.听了许多故事,有让人会心一笑的,也有令人感慨万千的.见到了许多令人景仰的科学家,游遍了美国的东部和西部.练习了英语听力,培养了耐心(19min 视频看了 3h). 打算做一个时间的流程图(恩之后会补上). 随笔目录: (1)第一周 (2)第二周 上 (3)第二周 下 (4)第三周 上 (5)第三周 下 (6)第四周 上 (7)第四周 下 历史的进程 1938 - 1945…

WEEK1 War Time Computing and Communication Bletchley Park 布莱彻利庄园:a top-secret code breaking effort by the British government during World War II. 二战时期英国政府为了破译德国的"Enigma"电报加密装置而设立的,聚集了一大批高端的密码学.数学人才的基地.最后在Alan Truing(艾伦图灵)的主导下设计了第一个计算机.(以上中文注释来自笔…

前言 这个Internet History 有些令人劝退.电脑无法播放视频.手机不能播放.最后百度了改了hosts文件才可以. 附上解决方法: 解决coursera可以登录但无法播放视频 第一周 第三讲 第三讲主要围绕这张图展开 布莱切利公园被很多人认为是现代计算机科学的发源地. 1939年 9月4日,图灵前往布莱切利公园报道. 图灵和其他人员说服力丘吉尔,从此以后布莱切利公园得到了所需的所有资源. 布莱切利公园重建了整套系统之后,英国人就开始用波兰人的方法,破解英格玛机器. 图灵明白了他们的方…

Abstract 课程名称:互联网的历史.技术和安全 coursera地址 制作方:密歇根大学(University of Michigan) 教师:Charles Severance, Associate Professor, School of information coursera页面: 以下是渣翻译 课程简介:技术和网络对我们生活,文化,和社会的影响继续增加.过去的六十年,得益于网络设施的基础建设,你可以在任何有网络的地方选修这门课.在一个以信息为中心的世界,我们需要了解网络技术的工作…

Week 2 History: The First Internet - NSFNet Welcome to week 2! This week, we'll be covering the history of the first internet: NSFnet. In the 1960s and 1970s, there was a great deal of research done to build the first wide-area packet switched networ…

目录 Coursera-Note: Internet History, Technology and Secure 第一周 第二周 数据交换: Packet switching技术: 第三周 创造http 第四周 JS和mozilla.firefox的起源 JS的发明: World Wide Web Consortium Jeff bezos:amazon创始人之一 第五周 the link layer 分层模型--链路层 链路层 Ethernet IP DHCP:dynamic host co…

Internet History Internet Technologe Internet Secure…

Internet History,Technology and Security(简单记录) First Week High Stakes Research in Computing,and Communication 二战期间,需要有效快速的方式联系盟国,进而意味着通信方式需要便捷以及快速. 但是无线通信难以物理隐藏,需要利用code(应该是密码)来加密解密,也就产生了相应的计算需求,数学则是其中重要的工具. 为了破解这类code,选择借助于计算机,从最早的机械计算机(mechanical c…

时间飞逝,一周又过去了,这周我们来到了Internet History, Technology and Security (Week 2)的学习,从标题就可以看出,这周主要是介绍“互联网”雏形的诞生.Supercomputers Justify a National Network”介绍了网络诞生的背景和网络的发展.“The First ‘Internet’”则通过三位与其相关的知名人物从不同的角度来讲述早期网络诞生背后的故事 History Through Supercomputing 在美国…

今天学习了Coursera上University of Michigan开的互联网的历史.技术和安全课程的FirstWeek内容. 先是吐槽下这个Coursera,认证非常麻烦,PC端需要摄像头拍照.只能用AppStore上的应用下载了一个Coursera,再自拍了一张. 课程安排也是有点奇怪,原本以为每一周有每一周的学习任务,但是到后面发现,每一周(类似每个章节)有个终止时间,也就是说只要在终止时间之前完成就可以完成目标,并不是很在意你是什么时候完成的.还好是今天注册的,明天(7/16)就截止…

前言: 上周学习了<电子计算机的曙光>,对战时及战后的计算机的历史发展有了更丰富的了解,今天继续coursera的课程,感觉已经有点适应了课程的节奏(除了经常有些奇奇怪怪的词汇看都看不懂@#￥%),嗯. Supercomputers Justify a National Network: History Through Supercomputing 70年代开始的时候,只有少数幸运的人才能用上电传打字机,就像视频中使用的一样.那时候的数据传输还依靠leased line(租用线路)来实现,和拨…

Week5 The Transport layer is built on the Internetwork layer and is what makes our network connections reliable. Technology: Internets and Packets 新年好!(￣▽￣) coursera address Layer1: Link Keywords: Packet, Shared Network, Layered Network Model, Link L…

Week4. We are now moving into Week 4! This week, we will be covering commercialization and growth. The late 1990's saw the web and Internet used increasingly to revolutionize how business was done. Companies like Amazon were founded and grew very rap…

Week3. Welcome to week 3! This is our fourth and final week of History where we make the connection from those early innovations of the modern Internet we are using for this class. Up next we move into looking at how the Internet works on the inside.…

Week2. History: The First Internet - NSFNet coursera address Supercomputers Justify a National Network Keywords: leased line, Supercomputer center, Store and forward networks, ARPANET, BITNET, packet switching, router, NSF, Larry Smarr History Throug…

课程地址:https://www.coursera.org/learn/internet-history 科学|上网可解决视频加载不出来的问题 Week 1 High Stakes Research in Computing, and Communication BOMBE:一个强大的机械计算机,德国加密改进后使机械计算机不能解密它,用于战时通信. Colossus:一个强大电子计算机 有线通信范围小,无法满足二战时期全世界范围通信 无线通信满足战争需求 避免被拦截,使用加密的无线信号 Alan…

Week ⑨ We are now on the second to last week of the class and finishing up our look at Internet Security. You can also see the final exam and its due date. The due date of the final exam signals the end of the class. This week, we'll be covering web…

Week 8 This week we start two weeks of Internet Security. It is a little technical but don't worry - we stay at a very high level and I am confident that if you are still keeping up with the class that you will enjoy these next two weeks. You won't k…

Week7 With reliable "pipes" available from the Transport layer, we can build applications like web browsers, file transfer applications, or email clients and servers. Technology: Application Protocols coursera address Layer 4: Applications Keywo…

Week6 The Internet is desinged based on four-layer model. Each layer builds on the layers below it. The Link and Internetwork layers are the lowest layers of that model. Technology: Transport Control Protocol(TCP) coursera address Transport/Reliabili…

Week 9 Security: Web Security We are now on the second to last week of the class and finishing up our look at Internet Security. You can also see the final exam and its due date. The due date of the final exam signals the end of the class. This week,…

Week 4 History: Commercialization and Growth We are now moving into Week 4! This week, we will be covering commercialization and growth. The late 1990's saw the web and Internet used increasingly to revolutionize how business was done. Companies like…

Week 3 History: The Web Makes it Easy to Use Welcome to week 3! This is our fourth and final week of History where we make the connection from those early innovations of the modern Internet we are using for this class. Up next we move into looking at…

Week 1 History: Dawn of Electronic Computing Welcome to Week 1! This week, we'll be covering the early history of electric computing. World War II emphasized the strategic importance of computation, communication, and information. There was unprecede…

Week5 Technology: Internets and Packets Welcome to Week 5! This week, we’ll be covering internets and packets. The Internet is designed based on a four-layer model. Each layer builds on the layers below it. The Link and Internetwork layers are the lo…

Layer 4: Applications Application Layer TCP提供了“a reliable pipe”(一个坚固的水管)连接用户和服务器,确保了数据能准确不出意外地传输,所以Application Layer(应用层)可以不考虑底层技术细节,转而去实现一些具体的应用功能. Application Layer有两个基本问题: 首先是应用如何得到数据,答案是Ports(端口) 其次是应用遵循怎样的规则运转,答案是Protocols(协议) Ports(端口)跟在IP地址后面,…

前言: 之前都在学习Internet的历史,从这周开始,进入到了Internet技术的学习. Layer1: Link Introduction / The Link Layer 80年代之前,主流网络的还是Store and Forward Networking(存储转发网络),但是由于其在数据处理方面延时较大,无法应用于条件严苛的军事领域,故军方出力研究出了ARPANET——一个典型的packet switch network(分组交换网络). ARPANET给出了一个不一样的网络:Shar…

Explosive Growth of the Internet and Web: The Year of the Web 1994年后,由NCSA的老员工们构成的Netscape(网景)的成立.Netscape原本目标是做一个开源产品,构建一个浏览器,但他们很快决定将浏览器和Web服务器转为更专有的,并尝试使用独有的技术去创建分布式计算应用程序与微软竞争.由于Netscape很明显要在Mac.Windows和Linux上开发可移植的软件时,微软开始担心了——因为这样操作系统就不重要了,而微软在…

前言: 上周学习了第一个网络NSFnet,美国国家科学基金会(National Science Foundation,简称NSF)在全美国建立了6个超级计算机中心所互联的一个网络,这周继续学习网络的发展历史. The Early World-Wide-Web: Getting To The Web 之前去过了密西根大学,这次去了个新地方——CERN(法语:Conseil Européenn pour la Recherche Nucléaire,欧洲核子研究组织),CERN是世界上最大型的粒子物…