Machinery is the general term for machines and institutions. Machinery is a tool that can help people reduce the difficulty or effort of work. Items such as chopsticks, brooms, and scorpions can be called machines. They are simple machines. A complex machine is made up of two or more simple machines. These more complex machines are often called machines. From the point of view of structure and movement, there is no difference between institutions and machines, which is generally called machinery.