Computer hardware includes the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers.[1][2]
By contrast, software is the set of instructions that can be stored and run by hardware. Hardware is so-termed because it is hard or rigid with respect to changes, whereas software is soft because it is easy to change.
Hardware is typically directed by the software to execute any command or instruction. A combination of hardware and software forms a usable computing system, although other systems exist with only hardware.
^"Parts of computer". Microsoft. Archived from the original on 27 November 2013. Retrieved 5 December 2013.
^Gilster, Ron (2001). PC hardware : a beginner's guide. Internet Archive. New York; London : McGraw-Hill. ISBN 978-0-07-212990-8.
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