What are the functions of hardware？

As is well known, hardware is actually some of the common accessories or fasteners in our daily lives. Hardware is very important and widely used in modern society, as it is an indispensable component that is used in many places in daily life. I believe many people will also ask, which hardware does hardware refer to? Why is it called hardware?
The commonly referred to hardware refers to five metal materials: gold, silver, copper, iron, and tin. Hardware is the mother of industry; The foundation of national defense, hardware material products, are usually only divided into two categories: large hardware and small hardware. Big hardware refers to steel plates, steel bars, flat iron, universal angle steel, channel iron, I-shaped iron, and various types of steel materials; Traditional hardware products, also known as "small hardware". Through manual processing, it can be made into artworks or metal devices such as knives and swords. In modern society, hardware is more common, such as hardware tools, hardware components, daily hardware, construction hardware, and security supplies. Most small hardware products are not consumer goods, they are construction hardware, white iron sheet, lock type iron nails, iron wire, steel wire mesh, steel wire scissors, household hardware, various tools, etc. In the modern Industrial society, the hardware industry has developed rapidly. The hardware industry has played an immeasurable role in the development of the national economy, and hardware products have become an indispensable part of industrial manufacturing.