密歇根大学的网络课程Internet history---第一周视频学习笔记
Internet History This material mainly introduces the following parts: - Some outstanding figures in the history of Internet development - Several important stages in the history of the Internet Phone Line Networking 电话网络 Dial-Up Access 拨号访问 Data Transfer with Leased Lines 使用租用线路进行数据传输 Store and Forward Networking 存储和转发网络 Typically specialized in Mail E-Mail could make it across the country in six hours to about 2 days then some valuable questions about research networks were raised during 1960-1980’s came up with the following solution: Efficient Message Transmission: Packet Switching 分组交换