Computer technicians repair and troubleshoot computers and other electronic equipment that is connected from the computer by computer cables to their CPU. Some computer technicians choose to specialize by only working on one specific type of equipment.
When your computer will not boot up, will not turn off or it starts making strange noises and does not operate properly, it is a computer technicians job to troubleshoot your PC and fix the problem that is causing all your distress. Sometimes they deal with serious problems such as the hard drive burning or smaller annoyances such as chancing the battery for your computer clock.