A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.

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.