Definition (Source: Wikipedia)
***A computer repair technician is a person who repairs and maintains computers. The technician's responsibilities may extend to include building or configuring new hardware, installing and updating software packages, and creating and maintaining computer networks. Computer repair technicians work in a variety of settings, encompassing both the public and private sectors. Because of the relative newness of the profession, institutions offer certificate and degree programs designed to prepare new technicians, but computer repairs are frequently performed by experienced and certified technicians who have little formal training in the field.[1] Hardware repair
While computer hardware configuration varies widely, a technician works with two basic types of hardware; units limited to a location (desktops, mainframes and supercomputers) and more portable (laptop and handheld) devices. Technicians also work with and occasionally repair a range of peripherals, including input devices like keyboards, mice, and scanners, output devices like displays, printers, and speakers, and data storage devices ranging from external hard drives to specialized high-storage desktop computers called servers. Technicians involved in system administration might also work with networking hardware, including routers, switches, fiber optics, and wireless networks. Software repair
When possible, repair technicians protect the computer user's data and settings, so that after repair, the user will not have lost can fully use the device with little interruption, and then diagnose the problem. Addressing the issue, the technician could take action as minor as adjusting one or several settings or preferences, but could also apply more involved techniques like installing, uninstalling, or reinstalling various software packages. A reliable, but somewhat more complicated, procedure for addressing software issues is known as a restore, in which the computer's original installation image (including operating system and original applications) is reapplied to a formatted hard drive.