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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/internet-history
课程评论：没有评论
课程名称：互联网历史、技术与安全 概述：随着技术和网络对我们的生活、文化和社会的影响不断增加，了解网络技术的运作方式变得至关重要。本课程将带您了解互联网的起源、创始人以及其工作原理，您将见到许多对今天我们所使用的互联网和网络技术做出贡献的创新者。 学习目标：完成本课程后，您将不再对互联网和网络视而不见，而是在当前社会面临的重要技术问题上有更深入的认识。您将意识到互联网和网络是创新的空间，并将更好地理解自己在其中的角色。如果您对课程内容感到兴奋，这也为您后续学习网页设计、网页开发、编程或网络管理等课程打下良好基础。至少，您将成为一名更聪明的网络公民。 课程大纲： 1. 入门：欢迎来到课堂。首先，我们将回顾互联网和网页的历史，接着了解网络如何运作，并探讨如何保障互联网和网页上的信息安全。 2. 历史：电子计算的曙光：二战强调了计算、通信和信息的战略重要性，促使新技术的重大投资，从艾伦·图灵及布莱切利公园的其他人开始。 3. 历史：第一个互联网 - NSFNet：在1960年代和1970年代，针对美国国防部的宽区域分组交换网络进行了大量研究，1980年代则成立了第一个“互联网”，使学术研究者可以访问超级计算机资源。 4. 历史：网页简化了使用：虽然万维网于1990年发明，但并非一蹴而就。到1994年，被称为“网页之年”时，网络使用量激增。 5. 历史：商业化与增长：1990年代末，互联网和网页逐渐被用来革新商业模式，像亚马逊这样的公司迅速崛起。 6. 技术：互联网与数据包：互联网是基于四层模型设计的，每一层都依赖于下层。 7. 技术：传输控制协议（TCP）：传输层建立在互连层之上，使我们的网络连接更加可靠。 8. 技术：应用协议：通过传输层的可靠“管道”，我们可以构建网页浏览器、文件传输应用或电子邮件客户端和服务器等应用。 9. 安全：加密与签名：使用简单的实例，探讨如何保护数据免受窥探并确保数据在传输中未被篡改。 10. 安全：网页安全：运用基本的加密和签名理念，探讨如何保护我们在现代网页和互联网中的连接安全。 11. 期末考试：评估所学知识的掌握程度。
Name:Getting Started
Description:Welcome to the class. We will first look at the history of the Internet and Web, followed by a look at how the network works and then examine how we secure information on the Internet and Web.
Name:History: Dawn of Electronic Computing
Description:World War II emphasized the strategic importance of computation, communication, and information. There was unprecedented investment in the development of new technologies during the war. We start with Alan Turing and others at Bletchley Park.
Name:History: The First Internet - NSFNet
Description:In the 1960s and 1970s, there was a great deal of research done to build the first wide-area packet switched networks for the US Department of Defense. In the 1980s, the first “Internet” was formed to allow academic researchers to access supercomputer resources.
Name:History: The Web Makes it Easy to Use
Description:The World-Wide-Web was invented in 1990 but it was not an overnight success. But by 1994 - “the year of the web” - the web was being widely used and Internet usage was growing by leaps and bounds.
Name:History: Commercialization and Growth
Description: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 rapidly.
Name:Technology: Internets and Packets
Description: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 lowest layers of that model.
Name:Technology: Transport Control Protocol (TCP)
Description:The Transport layer is built on the Internetwork layer and is what makes our network connections reliable.
Name:Technology: Application Protocols
Description:With reliable “pipes” available from the Transport layer, we can build applications like web browsers, file transfer applications, or email clients and servers.
Name:Security: Encrypting and Signing
Description:Using simple examples, we examing how to shield data from prying eyes and make sure that the data was not altered while in transit.
Name:Security: Web Security
Description:We apply the basic ideas of encryption and signing to who we actually secure the connections that we use on today’s Web and Internet.
Name:Final Exam
Description:
The impact of technology and networks on our lives, culture, and society continues to increase. The very fact that you can take this course from anywhere in the world requires a technological infrastructure that was designed, engineered, and built over the past sixty years. To function in an information-centric world, we need to understand the workings of network technology. This course will open up the Internet and show you how it was created, who created it and how it works. Along the way we will meet many of the innovators who developed the Internet and Web technologies that we use today. What You Will Learn: After this course you will not take the Internet and Web for granted. You will be better informed about important technological issues currently facing society. You will realize that the Internet and Web are spaces for innovation and you will get a better understanding of how you might fit into that innovation. If you get excited about the material in this course, it is a great lead-in to taking a course in Web design, Web development, programming, or even network administration. At a minimum, you will be a much wiser network citizen.
