TERADYNE A1004-00003 398-723-00 电源板板卡

TERADYNE A1004-00003 398-723-00 电源板板卡

电脑机箱主板，又叫主机板(mainboard)、系统板(systemboard)或母板(motherboard)；它分为商用主板和工业主板两种。它安装在机箱内，是微机最基本的也是最重要的部件之一。

主板一般为矩形电路板，上面安装了组成计算机的主要电路系统，一般有BIOS芯片、I/O控制芯片、键和面板控制开关接口、指示灯插接件、扩充插槽、主板及插卡的直流电源供电接插件等元件。主板采用了开放式结构。

工业自动化早在PLC之前就开始了。在20世纪早期到中期，自动化通常是使用复杂的机电继电器电路来完成的。然而，创建简单的自动化所需的继电器、电线和空间的数量是有问题的。一个简单的工厂流程自动化可能需要数千个继电器！如果逻辑电路中的某些东西需要改变呢？哦天啊！

注意:基本上，当继电器的线圈通电时，机电继电器通过磁力打开或关闭其电触点来工作。是非常有用的器件，仍然在工业自动化中发挥着重要作用

Computer chassis motherboard, also known as the host board (mainboard), systemboard (systemboard) or motherboard (motherboard); It is divided into commercial motherboard and industrial motherboard two kinds. It is installed in the chassis and is one of the most basic and important components of the microcomputer.

The main board is generally a rectangular circuit board, which is installed with the main circuit system of the computer, which generally has the BIOS chip, I/O control chip, key and panel control switch interface, indicator connector, expansion slot, DC power supply connector of the main board and card. The main board adopts an open structure.

Industrial automation began long before PLCS. In the early to mid-20th century, automation was often done using complex electromechanical relay circuits. However, the amount of relays, wires, and space needed to create simple automation is problematic. A simple factory process automation may require thousands of relays! What if something in the logic circuit needs to change? Oh, my God!

Note: Basically, electromechanical relays work by magnetically opening or closing their electrical contacts when the coil of the relay is energized. It is a very useful device that still plays an important role in industrial automation