According to the distribution rules of readers' arrival interval and service time, the mathematical model for simulating librarycirculationsystem was established by the Monte Carlo methods.
It introduced the development of a short message system of Beijing Institute of Technology library for sending library circulation information such as the books due and available holds.
北京理工大学图书馆通过自行开发的手机短信息系统，实现了流通借阅通知的实时提醒。
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This paper introduces briefly the LibraryCirculation Management System WD-TLX designed for microcomputer MC-68000.