A machine is a mechanical or electrical device that sends or converts energy to perform or a tool helps facilitate human work. It usually takes an input as a trigger, sends the converted energy into an output, which performs the preset task.
Machines have developed human capabilities since before written records. The main difference from simple tools and simple mechanisms or planes is the power source and possibly independent operation. The term machine usually refers to the parts that work together to do work. Usually these tools reduce the intensity of the force applied, change direction
