Computer hardware servicing refers to doing repairs and maintenance on the physical components of a computer and its peripherals, including fans, hard drives, keyboards and printers. It differs from software-related maintenance, which deals with the programs running on a computer, including eliminating malware, installing new software and updating programs for users, though some people are skilled at both.
Ideally, a computer will go many years without needing physical maintenance, but that’s not always the case. Moving components like hard drives, printers and cooling fans can break down over time, like any mechanical parts, and when they do, they’ll need to be repaired or replaced. Batteries on laptops and tablets don’t last forever and need to be replaced over time when they cease to hold a charge.