Network-based Network Multi-medium Teaching System

With the development of network technology, the computer has realized networkization. With the advance of multi-media technique, the form of compute becomes more diverse. As a kind of complement of traditional teaching mode, the network teaching has already become the modern popular teaching mode.By making full use of the powerful and high efficiency Delphi, the network multi-medium technology and the current experiment environment, we design the assistance teaching system of a network multi-medium to realizes respectively the function of document's deliver, multicast of screen, long range control, the act surveillance, long range to hand over with each other, student score search etc. Broadcast way is regarding Subnet as the unit and adope multicast to economize the wide belt of network. Data of deliver applicants mainly the Stream's function in the Delphi and API function of Windows .The conjunction of network make use of the TNUDP, TserverSocket and TclientSocket in Delphi. We make use of the ADO module and SQLServer to reach interview of database.We adopts the agreements of TCP/ IP, and use the agreements of FTP, IRC in Delphi .We analysis dependable towards of manly point broadcast, hour postpone, the mechanism of jams.The network-teaching make the classroom teaching more abundant, student can study in the positive, relaxed pleased round, It can increase the efficiency of study and the teaching quantity.