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…

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…

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…

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…

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…

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…

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,…

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…

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…