Input and Output Devices
Here describe some basic Computer Hardware Input & Output Devices. It is helpful your interview and also the networking related exam.
1) Input Devices: –
The devices which are used to give data and send instructions to the computer for processing are called Input Devices.
Types of Input Devices: –
• Keyboard & Mouse
• Graphics Tablets
• Barcode Reader
• Joystick & Gamepad
• Keyboard & Mouse:
Accepts input from a user and sends that data (Input) to the computer. They cannot accept or receive information from the computer.
It receives sound generated by an input source from the user and sends that sound to a computer.
It receives images and sends these images to the computer.
• Graphics Tablets:
This Input device is used to draw using a hand.
• Barcode Reader:
It is used to read the barcode of various items and send the information to the computer.
This device is used to control the video game and send the instruction to the computer.
This device is used to optically read documents, file, or images and then change it into the digital signal and send the information to the computer.
An optical Mark Reader is used to read marks on a document and send the information to the computer.
An optical Character Reader is a device that reads the printed text and sends the information to the computer.
Magnetic Ink Character Reader is an Input device that is used to Bank for cheque numbers are printed purpose.
2) Output Devices: –
The device which is used to display the results or receive the data are called Output Device.
Types of Output Devices: –
A monitor is an Output device that is responsible for receiving data from a computer and displaying the data as text or images for the user to see it.
It is getting data from a computer and displaying or projecting the data on a surface.
It receives sound data from a computer and plays the sound for users to hear.
It receives information and plays the sound for the user to hear.
TV is an Output device that receives the data, and plays the visual or audio signal to the user.
3) Input/ Output Devices: –
An Input/ Output device can receive data from users or another device (Input) and send the data to another device (Output). That means a device that can be used as both an input device and an output device is called I/O device.
Types of I/O Devices: –
• USB Flash Drive
• CD/ DVD – RW – Drivers
• Fax Machine
• USB Flash Drive:
It is also known as Pen Drive or Flash Drive. It receives data from a computer as an Input and sends the data to the computer or other devices as an Output.
It is used to send or receive data from one computer to another computer or other device.
• CD/ DVD – RW – Drives:
It receives data from a computer as input to copy and save as a CD/DVD and transfers the data to another device.
By touching the screen user inputs the data and receive the output.
The headset is a combination of a speaker as an Output device and a microphone function as an Input device.
• Fax Machine:
The fax machine has a scanner which is an Input device and a printer which is an Output device.
Note: Input & Output devices are called as Peripherals.
Computer Input and Output Devices PDF Download