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Computer hardware are the physical parts or components of a computer, such as the monitor, keyboard, computer data storage, graphic card, sound card and motherboard. By contrast, software is instructions that can be stored and ran 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.

About This Hardware

Hardware refers to the physical elements of a computer. Also referred to as the machinery or the equipment of the computer. Examples of hardware in a computer are the keyboard, the monitor, the mouse and the processing unit However, most of a computer’s hardware cannot be seen; It’s inside the computer case.I/O lets the computer talk with the world around it. Sometimes its necessary to add functionality to a computer to keep it up to date, or make it better. The amount of I/O a computer has can be changed, by adding expansion cards that support I/O.



In computers, a monitor is a computer display and related parts packaged in a physical unit that is separate from other parts of the computer. 



A motherboard is one of the most essential parts of a computer system. It holds together many of the crucial components of a computer.


CPU (Microprocessor).

central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program.


Main memory (RAM).

Random-access memory (RAM /ræm/) is a form of computer data storage that stores data and machine code currently being used.


Expansion cards.

Expansion cards allowed a processor system to be adapted to the needs of the user, allowing variations in the type of devices connected, additions to memory.


Power supply unit.

power supply unit (or PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. 

Optical disc drive.

In computing, an optical disc drive (ODD) is a disk drive that uses laser light or electromagnetic waves within or near the visible light spectrum .


Hard disk drive (HDD).

hard disk drive (HDD), hard diskhard drive or fixed disk[b] is a data storage device that uses magnetic storage to store.


In computing, a computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as a mechanical lever .


computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface. 


The disassembling of the computer system starts with externally connected device detachment.


switched-mode power supply (switching-mode power supplyswitch-mode power supplyswitched power supplySMPS, or switcher) is an electronic power supply .

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