The output unit consists of output devices that are attached with the computer. Itmconverts the binary data coming from CPU to human understandable from. The common output devices are monitor, printer, plotter etc.
In computing, an output device is a piece of computer hardware equipment that uses received data and commands from an information processing system (such as a computer or information appliance) in order to perform a task. This leads to the results of data processing carried out by the information processing system which converts the electronically generated information into human-readable form.