The difference between Controller and Supervisor

Controller as a noun:

One who controls something.

Controller as a noun (electronics):

Any electric or mechanical device for controlling a circuit or system.

Controller as a noun (business):

A person who audits, and manages the financial affairs of a company or government; a comptroller.

Controller as a noun (computing):

A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.

Controller as a noun (nautical):

An iron block, usually bolted to a ship's deck, for controlling the running out of a chain cable. The links of the cable tend to drop into hollows in the block, and thus hold fast until disengaged.

Controller as a noun (espionage):

The person who supervises and handles communication with an agent in the field.

Controller as a noun (linguistics):

The subject of a control verb. See

Controller as a noun (software architecture):

In software applications using the model-view-controller design pattern, the part or parts of the application that treat input and output, forming an interface between models and views.

Supervisor as a noun (management):

A person with the official task of overseeing the work of a person or group, or of other operations and activities.

Supervisor as a noun:

A person who monitors someone to make sure they comply with rules or other requirements set for them.

Supervisor as a noun (US):

In certain states, an elected member of the governing body for a county which is called the board of supervisors.

Supervisor as a noun (computing):

A process responsible for managing other processes.