What is a system? Give examples of tangible, intangible and mixed systems.

A system is a collection of interconnected objects that form a certain unity. Systems are material: a person, a table, a chair, a meat grinder, immaterial: a human language, a system of equations, a work schedule, and there are mixed systems. Mixed systems combine both material and non-material systems. Let’s give an example of a teaching system, it includes both material systems (pen, desk, notebook, diary) and non-material (studied courses, physics, English). The main property of any system is that when the elements are combined into a system, the system acquires new properties that none of the elements individually possessed. But if you take this component, the system will fall apart. The train is a system. But if you remove the wheel or engine, the train will not be able to travel.