加电自检 Power-on self-test
（重定向自Power On Self Test）
加电自检又称为开机自我检测（英文Power-on self-test，常用简称POST），是计算机BIOS的一个功能，在开机后会运行，针对计算机硬件如CPU、主板、内存等进行检测，结果会显示在韧体可以控制的输出接口，像屏幕、LED、打印机等等设备上。
测试流程：
如果没有显示器，我们可以通过POST CARD来完全上面的测试工作。
Power On Self Test
中文百科
英语百科
Power-on self-test 加电自检
（重定向自Power On Self Test）
A power-on self-test (POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on.
This article mainly deals with personal computers, but many other embedded systems such as those in major appliances, avionics, communications, or medical equipment also have self-test routines which are automatically invoked at power-on.
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