Computer hardware includes the physical parts of a computer, such as the case, central processing unit, monitor, keyboard, computer data storage, graphics card, sound card, speakers and motherboard. By contrast, software is the set of instructions that can be stored and run by hardware.
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The computer hardware contains mechanical elements and electronic elements of the computer. The hardware of the computer system includes monitor, CPU, keyboard, mouse, printer, sound system, RAM, hard disk and many more.
To be precise, hardware devices are for data and information retention, and are broadly classified as:-
- Input Devices. ...
- Processing Devices. ...
- Output Devices. ...
- Memory/Storage Devices.
Hardware is typically directed by the software to execute any command or instructions. A combination of hardware and software forms a usable computing, although other systems exist with only hardware.
By contrast, softwareis 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.