Hardware in the computer are its parts that makes it complete. Computer hardware includes monitor, CPU, Motherboard, RAM, SMPS etc which makes it complete. If any of the above is eliminated than the computer does not work properly. Some of the Computer hardware is mentioned below.
SMPS (switch mode power supply):
A power supply unit (PSU) is the component that other sources of power components in a computer.  More specifically, a power supply specifically designed for a general purpose alternating current (AC) conversion of electricity from the grid (100-127 V in North America, parts of South America, Japan, Taiwan, 220 – 240V in most of the rest of the world) to low-power DC voltage to make the internal components. Some power supplies have a switch to change between 230 V and 115 V. Other models have automatic sensors that will automatically input, or cannot accept any voltage between those limits.

Video Display Driver:
Produces a graphical output for computer monitors. This is inbuilt into the motherboard or attached in its own separate space (PCI, PCI-E, PCI-E 2.0, or AGP) as a graphics card.
This graphic card helps to open the high resolution formats or load high resolution programs.

Computer Storage:

A Computer has primary and secondary storage Devices.
Primary Storage includes RAM (random access memory) which only store the data till the computer is being executed or by the time when the power supply is on in the computer.

While secondary storage device is ROM (Read only memory) that can only read the data in the memory.
Here the data can be saved for ever and also can be used in future until deleted.

We also have some external storage devices that are removable and used time to time.
Floppy, CD, DVD, USB Disk are some of the examples of removable computer storage device.

Motherboard:

Mother board is platform where we have port for each and hardware. It is also a center that joins all the hardware all along. These are also found in versions due to continuous change in technology and to support new processors we need to get new platforms. These platforms are called motherboard.

There also much hardware that is necessary for a computer to operate. Basically we have monitor, CPU, keyboard, mouse in a personal computer. These personal computers can also be assembled according to users need.

Monitor:

A monitor is a device that shows data and information on the screen. This hardware of computer is similar to television. This hardware is of 3 types which are monochrome, RGB and colored.
Monochrome only consists of combination from black and white color. RGB   Monitor uses color combinations made from Red Green Blue color. But nowadays we use Colored monitor which uses standard colors and makes the combinations bit wise.

CPU:
Central Processing Unit is divided into two parts ALU and Control Unit. ALU stand for arithmetic and logical unit which solves all mathematical and logical operations. Control Unit Have a look on the Controlling of statements and hardware of computer.

Keyboard:
Keyboard is a hardware that is used to insert data into computer. Keyboard consists of alphabetical, numerical, function, editing keys to perform various operations.

Mouse:
Mouse is also known as selecting device. It is used to select a option shown in the computer and also to explore the options related to programs, files or folders.
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