Input and Output Devices Explain in Hindi - इनपुट आउटपुट डिवाइस क्या है? Master Tech Institute
Input and Output Devices Explain in Hindi - इनपुट आउटपुट डिवाइस क्या है? Master Tech Institute #Input_Device : In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks. #Output_Device : An output device is any peripheral that receives data from a computer, usually for display, projection, or physical reproduction. For example, the image shows an inkjet printer, an output device that can make a hard copy of any information shown on your monitor, which is another example of an output device. Computer Orgnisation • Computer Organisation कंप्यूटर ऑर्गेन... What is Computer • What is Computer, Definition of Compu... Don't forget to tag our Channel...! #inputdevice #outputdevice #ask4help #IOdevicesofcomputer #iocomputer #computerio #IO #iodevices #inputandoutputdevices #keyboard #computerkeyboard #LearnCoding #ask4help #computerbasic #whatiskeyboard #keyboardक्याहै #keyboardkeys #introductiontokeyboard INPUT DEVICES Input devices accept data and instructions from the user. Following are the examples of various input devices, which are connected to the computer for this purpose. 1. Keyboard 2. Mouse Monitor Keyboard Disk drives Mouse 4 Master Tech Institute 3. Light Pen 4. Optical/magnetic Scanner 5. Touch Screen 6. Microphone for voice as input 7. Track Ball 6 OUTPUT DEVICES Output devices return processed data that is information, back to the user. Some of the commonly used output devices are: 1. Monitor (Visual Display Unit) 2. Printers 3. Plotter 4. Speakers Keyboard A keyboard is the most common input device. Several kinds of keyboards are available, but they resemble each other with minor variations. The keyboard in most common use is the QWERTY board. Generally standard keyboard has 104 keys. In these keyboards, the cursor control keys are duplicated to allow easier use of Keyboard numeric pad. Mouse A mouse is an electro-mechanical, hand-held device (as shown in figure 1. 4). It is used as a pointer. It can perform functions like selecting menu commands, moving icons, resizing windows, starting programs, and choosing options. Mouse The most common mouse uses an internal, magnetically coated ball, to detect the movement of the mouse across a flat surface, usually a desktop. Now a days Optical or laser mouse is used to detect the movement. All windows based applications today are designed to work with a mouse. A mouse is used to replace hard -to-remember key combinations with easier "Point and Click" actions. However, it cannot substitute all keyboard operations. It can be alternative for commands based operations. Basics of Computer Light pen An input device that utilizes a light-sensitive detector to select objects on a display screen. A light pen is similar to a mouse (as shown in figure 1.5), except that with a light pen you can move the pointer and select objects on the display screen by directly pointing to the objects with the pen. 1.5.4 Optical Scanner Fig. 1.5 Light Pen These devices are used for automatic data collection. The devices of this category completely eliminate manual input of data. For example, the barcode reader is actually just a special type of image scanner. An image scanner translates printed images into an electronic format that can be stored in a computer’s memory, and with the right kind of software, one can alter a stored image. Another example of scanner is optical character recognition (OCR) device, used by banks to convert the scanned image of a typed or printed page into text that can be edited on the computer. Fig. 1.6 Scanner 1.5.5 Touch Screen Touch panel displays and pads are now being offered as alternatives to keyboard. Here the input can be given through the computer screen, that accepts the input through monitor; users touch electronic buttons displayed on the screen or they may use light pen. Touch Screen Monitor 1.5.6 Microphone Microphone is an input device, which takes voice as input. The voice communication is more error-prone than information through keyboard. There are two types of microphones available (as shown in figure 1.8): 1. Desktop Microphone 2. Hand held Microphone Monitor Out of all the output devices, monitor (as shown in figure 1.10) is perhaps the most important output device because people interact with this device most intensively than others. Computer CRT and LCD Monitor information is displayed, Basics of Computer visually with a video adapter card and monitor. Information processed within the CPU, that needs to be visually displayed, is sent to video adapter. The video adapter converts information from the format used, in the same manner as a television displays information sent to it by a cable service. Two basic types of monitors are used with microcomputers, which are as follows: 1. CRT 2. LCD
