What is the difference between device and instrument?

What is the difference between machine, equipment, device, tool, instrument ?. and explain with Examples?

• Answer:

  Machines are devices that need a person's attention to be used. Equipment are devices that do not need this attention. Example, a refrigerator is equipment. A steel cutter is machine. Example, a stove is equipment, a computer or a fax are machines. We call it, "fax machine". Equipment - are machines or major tools necessary to complete a given task. The tools a mechanic needs to repair a machine are an example while Machine is A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment. A device is a physical component but a tool may either refer to a method or a physical component.