A Computer Hardware is the collection of physical elements that constitutes a computer system.
- Computer hardware is the collection of physical elements that constitutes a computer system. Computer hardware refers to the physical parts or components of a computer such as monitor, keyboard, computer data storage, hard drive disk, mouse, system unit (graphic cards, sound cards, memory, motherboard and chips), etc. all of which are physical objects that can be touched. In contrast, software is untouchable. Software exists as ideas, application, concepts, and symbols, but it has no physical substance. A combination of hardware and software forms a usable computing system.