本系统以MCS-51单片机为核心，以8位8段数码管显示时间，可以通过键盘设定时间和闹钟时间，并具备整点报时功能。-This system MCS-51 microcontroller core to eight 8-segment LED display time, you can set the time and alarm time using the keyboard, and have the whole point timekeeping function.