Computer hardware is the collection of physical components that constitute a computer system. Computer hardware is the physical parts or components of a computer, such as monitor, keyboard, computer data storage, hard disk drive (HDD), graphic card, sound card, memory (RAM), motherboard, and so on, all of which are tangible physical objects.[1] By contrast, software is instructions that can be stored and run by hardware.
Hardware is directed by the software to execute any command or instruction. A combination of hardware and software forms a usable computing system.[2]
