笔者是一名计算机培训教师,每天奔波于单位、教室和客户之间。现在应用软件层出不穷,教学课件也越做越精致,教学质量也在不断提高。但笔者也遇到了一个问题,即工作中需要经常在不同地点使用的数据越来越多,课件越来越大,一张小小的软盘已经远远不能容纳了。购买便携式硬盘不仅需要一笔投资, The author is a computer training teacher, rushed to the unit every day, between classrooms and customers. Now an endless stream of application software, teaching courseware is more sophisticated, teaching quality is also rising. However, I also encountered a problem that the work needs to be used frequently in different locations, more and more data, courseware is getting bigger and bigger, a small floppy disk is far from accommodating. Buying a portable hard drive not only requires an investment,