As you know computers are very important in our life. You know that computers have become an important part of life through which we do our school, college and office work. Computers are used in banks, cyber cafes, hotels and many other places and to run the computer, we need two devices like Aa and B. The devices are called input and output devices. Input and output are the means through which the computer works.
What is an input device?
Input device in a computer is a device of hardware which is use to provide data and control signals to the computer. Due to which it becomes very easy for you to read and watch it. A computer cannot function without input devices. There are many examples of input devices. Such as keyboard, mouse, scanner, digital camera, joystick and microphone.
What is the difference between Output and Input Device?
Let us know the difference between Output and Input Devices.
- There are 10 types of input devices such as keyboard, mouse, touchpad, scanner, digital camera, microphone, joystick, graphic tablet and webcam. And there are 10 types of output devices. Computer Monitor Speakers Headphones Printers Projectors Plotters Video Cards Sound Cards CD & DVD Media. Activator.
- Signal is receive by the input device and displayed by the output device.
- Input device helps in taking data and entering it into the computer system and output device helps in processing the data.
- The input device sends data from the user to the processor unit and the output device receives data from the processor and sends it to the user.
I hope you have understood what Output and Input Devices are and how they are use? Nowadays computers play a very important role in our lives. I hope that in future also you will get to know about more things from our article.
About computer input devices and what functions do they perform?
Trackball: A trackball is also called a painting device because it consists of a rotatable ball on a fixed device that is moved manually using the fingers. It is use to play video games.
Light pen: It is an electro pointing device used to select drawing graphics.
Barcode Reader: Barcode reader is used to input data from barcode. Most of the shops and malls have bar codes.
Graphics Tablet: The way graphics are made with pencil and paper and graphics are taken in these computers. It is a computer input device.
Biometric Sensor: It is an input device. It is mainly use to capture the attendance of staff students in institutions for security purposes.
Scanner: Scanner is used to directly obtain data from documents into the computer system. It is an input device.
Webcam: A webcam is a digital camera attached to a computer. And we mostly use it for video conferencing or online chatting etc. It is a video capturing device.
Types of output devices
Monitor Output Device
Monitor comes in the category of output device; it is exactly like TV. It is very difficult to work without it. It is also call as a visual display unit. Monitors are use to view videos, images and documents. There are two types of output monitor devices. Which is as follows- CRT Monitor, LCD Monitor.
Printer Output Device
This device is use to print computer information which we get in the form of hard coffee. This output device converts Soft Copy to Hard Coffee.
Plotter Output Device
This device also works like a printer but it prints larger size items. With this, graphs, drawings, charts are print. It is use to make large drawings or photos and the photo is make on paper with the help of pen or pencil. It is use for Maps, Constructions Plans etc.
Output Device Speaker
This is also an output device. Through which you can also listen to music. The sound we hear through the speaker is generate by a part of the computer itself. Which is call as a Sound Card.
Projector
This is also an output device. It is use to show photos or videos on a large screen. The projector is use on a white screen. On which the light is project.
Conclusion
Input device in a computer is a device of hardware which is use to provide data and control signals to the computer. Due to which it becomes very easy for you to read and watch it. A computer cannot function without input devices. There are many examples of input devices. Such as keyboard, mouse, scanner, digital camera, joystick and microphone. We need two devices like A and B. The devices are call as input and output devices. Input and output are the means through which the computer works.
