First of all, the content and form of production tools are constantly developing and changing with the development of economy and science and technology. The early tools of production (stone and wood tools, metal tools) were operated by the hands of laborers who depended on their own physical strength. Later machines include tool machines, power machines and transmission devices, forming complex systems. And the modern automation machine system, added the electronic computer as the core of the automatic control device. The increasingly complex production tools and sophisticated production tools are an important factor in promoting the development of social productive forces.
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