Machines are pieces of equipment or a structure that are used to perform a task. They are usually powered by motors or other mechanical means and can be used for a wide range of purposes.

There are a number of different types of machines, including hand-held machines, vehicles, and large machines used in factories and other industrial settings. Some machines are used for one purpose, but can be adapted for other purposes.

Some machines are used for basic tasks, such as moving objects or filling a container. Others are more specialized and are used for more complicated tasks, such as manufacturing products or performing scientific investigations.