【摘要】 我国现有的多媒教学演练系统 ,有的是通过纯软件方式来实现的 ,还有的则是依附于广播系统 .前者占用大量内存资源 ,容易受病毒侵染 ;后者十分昂贵 .作者研制的这套系统 ,采用纯硬件的方式 ,在中南林学院现有教学网络中添加相关控制设备而成 .系统功能包括演示操作、学生练习、电子举手、电子解答等 .系统具有零内存占用、性能稳定、操作简单、维护方便、成本低廉等特点更多还原

【Abstract】 Some demonstrating and practicing systems of multimedia teaching in our country come true at present by means of pure software but some by means of the broadcast system. The former occupying a great deal of memory is prone to be affected while the latter is very expensive. Our system is established on pure hardware,and is formed by adding relative controlling devices into the present teaching net. Its function includes rehearsal, practice, question and solution. This system occupies no memory,and is convenient to operate, and is stable in performance and costs little.更多还原