摘要
在认真分析微型机内部时钟与实时时钟报警功能的基础上，用软件方法实现了微型机定时管理功能，使之到时发声报警，提示用户关机，并在指定时间自动停止计算机的运行。
Based on the careful analysis of the warning function of computer's inner clock and the real clock,the writers develop a system which can make the computer sound the alarm bell and stop working automatically at a set time,thus prompting users to turn off their machines.
关键词
时钟
报警
微机
定时管理系统
micro-computer
real clock
real clock warning
