Preface  

We have entered the era of “Internet plus”. The emergence of the application of  intelligent computer terminals based on mobile phone has brought great convenience to  people and will continue to change people’s way of life. Computer network is an  extremely important tool in this era. The basic knowledge of computer network and the  basic methods of computer network application are the necessary knowledge and skills for  each major of information science to expand the field of professional application and  improve the level of professional application. It is necessary for the students of  information science to learn and master the basic principles and application methods of  computer network.  Computer network, especially the Internet based on TCP / IP protocol cluster, is  becoming the engine of new economic development. The new economic development  mode created by computer network has produced huge economic and social benefits, and  has also played an innovative and even subversive impact on the traditional economic  model. These also have a profound impact on the education of computer and network  science and engineering. With the continuous development of network technology, the  existing technology continues to bring forth new ones. At the same time, computer  education is also affected by the changes in the professional, cultural and social scope of  its application. Computer science is applied in a wider range, and the content is also more  abundant. In the view of educators, its curriculum system, teaching content, teaching  methods and teaching means need to deepen the reform according to the development of  computer and network science and technology, and keep pace with the times. In the  engineering education aiming at solving practical problems, we should combine the  students’ training objectives closely and organically, pay attention to the integration of  knowledge, ability and quality education, and strengthen students’ practical ability of  analyzing and solving problems.

前 言  

我们已经进入“互联网+”时代，大量基于手机这种计算机网络智能终端设备 的应用的出现，给人们带来了极大的便利，并将继续改变人们的生活方式。计算机 网络是这个时代极其重要的工具，计算机网络基本知识、计算机网络应用基本方法 是信息学科各个专业拓展专业应用领域、提升专业应用水平的必备知识和技能。对 于信息学科各专业的学生而言，学习和掌握计算机网络基本原理和应用方法是十分 必要的。 计算机网络特别是以 TCP/IP 协议簇为基础的互联网正在成为新经济发展的引 擎，其创造的全新经济发展模式产生了巨大的经济及社会效益，同时对传统的经济 模式也起到革新甚至颠覆性的影响。这些也对计算机以及网络科学与工程的教育产 生深刻的影响。随着网络技术的不断发展，已有的技术不断推陈出新，同时计算机 教育也被其应用的专业、文化和社会范围的改变而影响，计算机科学适用在更广泛 的范围，内容也越加丰富。在教育工作者看来，其课程体系、教学内容、教学方法、 教学手段上都需要根据计算机及网络科学技术的发展不断深化改革，与时俱进。在 以解决实际问题为目标的工程教育中应紧密有机地结合学生的培养目标，注重知识、 能力、素质教育三个方面的综合，加强学生分析、解决问题的实际能力。