计算机是人脑功能的模拟产物,是一种自动、高速进行大量计算的电子设备。它能进行科学计算,也能进行文件管理。当它与一定的机电设备结合时,能实现自动控制和过程控制。这不免会使人感到神秘,或者会错误的认为“计算机能完全代替人的脑力劳动”。因此有必要了解计算机的整机构成和基本工作原理。计算机的内部结构虽然异常复杂,但其基本部件和单元电路却比较简单,它仅仅是一种人们制造和使用的工具,也只能按照人们预先 A computer is a product of simulation of human brain function and is an electronic device that performs a large number of calculations automatically and at high speed. It can be scientific calculations, but also for document management. When it is combined with certain electromechanical devices, automatic control and process control are achieved. This can inevitably make people feel mysterious or mistakenly believe that “computers can completely replace people’s mental work.” Therefore, it is necessary to understand the computer’s overall composition and basic working principle. Although the internal structure of the computer is extremely complex, its basic components and unit circuits are relatively simple. It is merely a tool that people make and use,