List the six external parts of a computer system and identify which are output and which are input devices

External computer parts are those that connect to the case, often to provide ways to input or output data. Most computers use a keyboard and mouse as external input devices and a monitor as an output device. Speakers, printers, modems, network routers and external storage devices are other external devices.

He would most likely be employed by a gov. agency or homeowner because he has the required skills that have to be known to apply and get hired into those jobs.