What is Computer Hardware
Definition- Computer contains the combination of hardware and software. Computer hardware is group of the all physical (touchable) components that are easily manageable, and all softwares are useless without implementing the computer hardware parts, all softwares are performed on the hardware. With the using of input hardware components can be inserted the input to computer, and retrieve the useful output with the help of output hardware devices.
List of Computer Hardware Parts Name and Functions:
Every computer parts have own unique function, so we explain types of computer hardware and their functions.
Computer hardware devices are classified into four different categories such as
1.Input Devices
2. Processing Devices
3. Output Devices
4. Memory/Storage Devices
Types of Computer Hardware Input Devices
What is input devices of computer with example – These components are mostly to be used for recognized the input data that are given by users for solving their problems. Input instructions can be different types such as text, images, audio, and video. With the help of these components these data transfer from input devices to computer.
Function – Obtain all different types of data from various types of input devices such as keyboard can allows only alphanumeric information and tracking device feed spatial information, and convert all data into machine language like as 0, 1 form. Finally calculated data provide to computer memory.
List of basic computer hardware components (parts) name
Here, We are describing some 3, 4 main components(parts) of computer system, and many types of input devices of computer like as:
Pointing Device:
Pointing devices create the input interface, with the help of this interface user help to control and feed the instructions to the PC using physical moving hand held devices like as mouse and more. Control the all positions of pointer on the screen of monitor with using pointing devices.
There are many examples of input devices of computer such as:
With the help of mouse of computer can be control a cursor, and select all types of text,files, icon on your computer screen.
In the Trackball, one small movable ball places on the surface, and using this ball can be moved any direction on the computer screen.
4. Pointing Stick
Pointing stick device shapes same as pencil eraser that is placed between G,H and B key on the keyboard.
5. Graphics Tablet
Graphics tablet is also known as drawing tablet. The main purpose of this device is to draw any types of sketch on his surface with using digital pen.
6. Touch screen
In the touch screen, users can select any text, file,and file with own fingers, without any other components.
7. Light Pen
This shape like as pen, with using this input device to feed input directly by this pen on the computer screen with good accuracy.
8. Stylus
Stylus input device is look like as small type pen shaped, purpose of this component to give the input instructions to computer screen and graphich tablet.
9. Motion sensor
Motion sensors detect the motion input that are given by user without any other input device.
10. Interactive smartboard
This is special digital smart white board, user can control the computer with smart board, when write any thing on the surface with the help to stylus and digital pen.
11. Fingerprint scanner
This device use for authenticate the user when they press their finger on the surface of fingerprint scanner.
12. Multi-touch screen
With the use of this technology, multiple uses can send input at the same time.
Game Controller:
These types of devices are designed for playing game with connect to a computer or other gaming system console. The main role of game controller devices is to all individual object, and character in your game.
Some examples are:
1.Game Pads
Game pad are designed for playing game, and can be handled by both hand.
2. Joysticks
Mainly, joysticks devices are designed for playing game, using this device can be control any character in the game.
3. Steering Wheels
Look like as car steering, and use for changing the direction the any object in the game.
4. Paddle
This device move up and down direction, this input component is also useful to game console.
5. Yoke
This yoke input devices are designed specially to flight simulation game.
6. Motion Sensing
Motion sensing devices are capable to detect the real life motion, and produce the optimal result.
7. Light Gun
Shape look like as real gun, main motive to design this device to shooting games.
8. Rhythm Game Controllers
These types of game controller devices are made for music types game, for controlling the rhythm.
Audio Input /Output Device:
With the help of audio input devices, user can send audio instructions to computer for different tasks such as processing, recording, and more. Many audio input devices work with speech recognition programs, because this software helps to translate spoken words into text document.
There are some examples of audio input devices such as
1.Microphone
This device is able to convert sound waves into electrical waves.
2. Midi keyboard
This device looks like as piano that is connect to computer via USB cable.
Audio Output Devices:
Some functionality are required for audio and video convert into hear able voice that our ears can hear these voice. This functionality may be special hardware and processing system, and this task can be fulfill by “Audio output devices“.
Here few examples for Audio output devices are:
1. Sound Cards
This is external card which is attached with motherboard for yielding the audio output information.
2. Speakers
This is output hardware component that is used for the producing the sound.
3. Headphone
This device is wear on the head so its name is headphone, this device allow to user listen music without anyone.
4. Onboard Audio
This circuit embedded internal y in the motherboard that produce the output in the form of sound, after processed data.
Bluetooth Peripheral:
Some devices connect to computer with Bluetooth mean wireless technology.
- Keyboard
- Mouse
- Headset
- Gamepad
Visual and Imaging Devices:
Such components help to provide input to computer in the form of images and visual.
Some examples are:
1. Webcam
This device uses for capture the real time image, and it connects to computer.
2. Digital Camera
Digital camera is able to store all images and videos store in digital form (memory chip) instead film (reel).
3. Digital Camcorder
Digital camcorder devices are able to recording all video into real-motion.
4. Biometric Scanner
Biometric scanner devices are designed for security purpose, because these devices are capable to identify the persons.
5. Barcode Reader
Biometric scanner devices are designed for security purpose, because these devices are capable to identify the persons.
Network Devices:
With the help of network devices, we can connect two or more computer, and other their hardware devices for making network.
Theses are
- Ethernet hardware
- Bluetooth/wireless hardware.
Processing Devices
Processing is most important function of computer, because in this phase has been done transformation to data into useful information using with many processing components of computer.
Function – The main function of processing devices are have to responsible for getting meaningful information from converted data with the help of various processing devices.
Processing device examples are:
Microprocessor is logically integrated chip that is processed all logical instructions, and produce the output.
2. GPU
Graphics processing unit is also a processor that is designed for rending the videos and images with good quality.
3.CPU
With the help of this Central processing unit can be executed all instruction such as logically, arithmetically, and I/O operation which are given by users.
4. Mother board
Motherboard is heart of the computer, because all processor and other components are connected with the motherboard.
5. Network Card
Network card help to connect multiple computer and other devices of computer.
6. Sound Card
Execute the voice instructions and arise the output in the sound form.
7. Video Card
Use to process the all video instructions, and yield the good quality video.
Output Devices
Output devices received the processed information form processing components, and finally produce them into various form such text, audio, and video. These output devices might be connected with computer via wireless or wired.
Function – Obtain all different types of data from various types of input devices such as keyboard can allows only alphanumeric information and tracking device feed spatial information, and convert all data into machine language like as 0, 1 form. Finally calculated data provide to computer memory.
There are many Examples of Output Devices of a Computer like are
Monitors use for showing the output in the visual shape, which is soft form.
2. Printer
Monitors use for showing the output in the visual shape, which is soft form.
3.Projector
For projecting the computer screen data on the surface object such as wall or white board.
4. GPS
GPS device take the all information from GPS controller such as location and weather conditions, and releases the accurate output.
5. Braille Reader
These devices are designed for blind person, because Braille reader retrieves all output from computer which readable for blind people.
6. Plotter
This computer hardware device is used for producing the vector graphic output.
Memory/Storage Devices
The core task of the memory is storage and retrieval; this depend on the R/W operation of all types of memory.
Using storage devices, all data files and objects can be sorted, porting, and extracting. The information can be stored in temporarily and permanently. These devices are may be internal or external.
Function – The prime functions of memory and storage devices are storing all data in temporary and permanent nature. If we want to store data for long time then can be used the permanent storage devices such as hard disk etc. But some time computer store data in temporary nature for some time only for execution any task for some moments such as Ram etc.
There are two types of storage devices such as:
Primary Storage Devices:
Primary storage devices are designed for temporarily storage, but fastest to storage devices and small size as well.
Examples are:
2. Cache Memory
Cache memory stores such data which use repeating frequently, so accessing speed of this memory is fastest to RAM.
Secondary Storage Devices:
Secondary storage devices used for the permanently storage of data, because if further time require any data then can be retrieved easily. The sizes of these components have large compare to primary storage devices, and storage capacity much high also.
Examples are:
- Floppy diskette
- Hard drive
- Magnetic strip
- SuperDisk
- Tape cassette
- Zip diskette
- Blu-ray disc
- CD-ROM disc
- CD-R and CD-RW disc.
- DVD-R, DVD+R, DVD-RW
- USB flash drive and jump drive
- CF (CompactFlash)
- Punch card
- M.2
- Memory card
- MMC
- NVMe
- SDHC Card
- SmartMedia Card
- Sony Memory Stick
- SD card
- SSD
- xD-Picture Card
- Cloud storage
- Network media
- OMR