介绍微型计算机的日常维护与保养，着重介绍主机、打印机、键盘及显示器等硬件的基本维护方法。
The daily repairing and maintenance for microcomputer was introduced, and the basic maintenance methods for main machine, printer, keyboard and display were focused on.
显示输出系统主要包括显示器、打印机及声报警器等。
And the display system is mainly composed printer and acoustic warning apparatus.
专用电脑有后备存贮器、键盘、微型打印机及LED显示器。
The whole system is controlled by a special computer system provided with back-up memory, key-board, micro-printer and led display.
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