The group of physical elements that combine to form a computer system is called computer hardware. It consists of components like monitor, mouse, keyboard, hard drive disk, printers, computer data storage, CPU (Central Processing Unit) etc. CPU itself is a collection of many parts such as motherboard, graphics card, sound card, memory and chips with different function. In one word we can describe computer hardware as the parts which we can touch unlike software. There is some basic computer hardware which is compulsory to run the system. Other than that many parts can be added to boost the computing system and make it more efficient.
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