hardware refers to the physical elements of a computer.it is also referred to as the machinery or the equipment of the computer. examples of hardware in a computer are the keyboard, the monitor, the mouse and the processing unit however,most of a computers hardware cannot be seen; in other words, it is not an external element of the computer, but rather an internal one, surrounded by the computers casing. a computers hardware is comprised of many different parts,but perhaps the most up of even more parts that power and control the computer