What is the input device-इनपुट डिवाईस क्या है
Computer cannot do its work on its own. Work is done by computer. For which he has to give necessary instructions and data. Special tools are used to deliver data and instructions. Which we call Input Device.
In this Lesson, we are giving you the names and complete information of the major input devices of the computer. These devices are the most commonly used and popular input devices. That is why we have chosen them for this Lesson. Apart from these, more input devices are available.
Keyboard-कीबोर्ड
The keyboard is an input device, with which we give instructions and data to the computer. Keyboards are mainly used to write text. However, some special functions and commands are also given by the keyboard.
The keyboard is designed like a Typewriter. Which has more than 100 Keys. Keyboard Keys are divided into Function Keys, Typing Keys, Control Keys, Navigation Keys and Numeric Keys.
Mouse-माउस
Mouse is a typical but common input device. Also called a Pointing Device. The mouse is mainly used to select, move, move items, open and close items on the computer screen.
Computer mouse also usually looks like a real mouse. It is small and rectangular, connected by a cable to the computer. But nowadays, wireless mouses have also come in the market.
Touch Screen-टच स्क्रीन
Touch Screen is also an input device. did you now? It makes the function of both the keyboard and mouse alone. On touching it with the finger or stylus, it registers the event and sends it to the computer for processing. Icons and text are used for navigation on the touch screen.
Joy Stick-जॉय स्टिक
The Joy Stick is also a mouse-like input device. Which are used to control Cursor or Pointer. It is used more in Computer Games and Graphic Designing.
The Joy Stick has a similar gear shape. In which there is a round or square base with Lever or stick. Shaking this stick is controlled to Cursor / Pointer. Nowadays, there are also buttons in Joy Sticks called Triggers.
Digital camera-डिजिटल कैमरा
Digital Camera is used to take pictures and videos to computer. These photos and videos are then manipulated by Graphic Editor. And then the user can print them.
Microphone-माइक्रोफ़ोन
Microphone is used to provide Sound Input. Thanks to its voice chat, voice can be delivered while calling. And Presentations can be Sound Recorded for Videos.
Light Pen-प्रकाश पेन
Light Pen is a pointing input device. Which is used to select text, draw picture. Its texture is like a ball pen. Light Pen is also considered to be the birth giver of Touch Screen.
Track Ball-ट्रैक बॉल
Track Ball is an input device used to control the pointer. There is a half-sunken ball in its base. The pointer stir when shaken. The track ball also has buttons that act like a mouse button.
Scanner-चित्रान्वीक्षक
Scanner is like a photocopy machine and works. But the result is opposite. With the help of Scanner, we deliver the hard copy ie the data available on paper to the computer. Which you can also edit and print before using.
Webcam-वेबकैम
Webcam which stands for Web Camera. There is a small Digital Camera. Which is directly connected to the computer. Which are controlled with the help of software. It is used for video calling, video recording, photographing.
Nowadays, there is a Webcam Built In laptop. But for computers, it has to be purchased separately. And in Smart Phones, it is known as Selfie Camera, to put it simply, Front Facing Camera.
Bar Code Reader-बारकोड रीडर
Bar Code Reader is used to read Bar Coded Data printed on objects. With its help, items are easily counted, trimmed. It acts like a scanner. Those who read the data and send it to the computer.
OMR-ओएमआर
The full name of OMR is Optical Mark Reader. Which scans the marks of a pen or pencil. It is used to check Answer Sheets. Which are called OMR Sheet. Multidimensional questions are tested by this.
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