Lightpen is a pointing device similar to a pen. The keyboard is the most common and very popular input device which helps to input data to the computer. This reading process is called Magnetic Ink Character Recognition (MICR). This data is given to the computer by using particular devices named computer input devices. It consists with internal battery like dry cell, so that it performs all other mouse functions using wireless technology. We move it on the screen just like an ordinary pen but it works with electricity. Barcoded data is generally used in labeling goods, numbering the books, etc. In fact, OCR is software that converts the document image into text format. Now a day latest scanners provide a facility of OCR stands for Optical Character Recognition. f) Digital camera. True or false, a webcam is an input device? It provides beautiful functions & facilities to control video games around the screen. A computer keyboard is one of the primary input devices used with a computer. Mice allow for fast, high precision work and that is why they are popular with both professionals and  pc gamers. They allow the user to draw in the same manner as they would on paper, but instead producing digital art work. These images can be edited before they are printed. Until quite recently, touch screens were expensive, specialist devices that were normally found in retail or commercial settings. Full keyboards can be used for gaming as well as work Differences between Computer Architecture and Computer Organization. More ‘natural’ feel than drawing with a mouse. Text input Devices. Advantages. The layout of the keyboard is like that of the traditional typewriter, although there are some additional keys provided for performing additional functions. The arrangement of keys on the keyboard is known the layout. Input devices true or false powerpoint quiz ( or trinket – make hangman style?). At the end, we get results that all instruments that are used to given instructions to the computer are called computer input devices. For the ‘Instagram’ generation photos have become a throwaway product. As like characters are typed by the keyboard, voice is entered by microphone same pictures are captured by digital camera and so on. “A computer input device is a hardware component that is used to enter data and instruction into the computer to perform specific task”. mechanical motion, audio, visual, etc.) The digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer. Generally input devices are manual or direct data entry devices. This is a ball which is half inserted and by moving fingers on the ball, the pointer can be moved. some tablets hand handwriting recognition so that writing skills can be used instead of keyboard skills. Text input devices usually come in the form of either keyboards or numeric keypads. These are usually used in specialist systems, such as retail or industrial systems. The trackball is very similar to the mouse but it has two click buttons & a ball that can circulate freely. Text input devices usually come in the form of either keyboards or numeric keypads. The main thing is that it has a ball under it that rotates when a user has been dragging over there. Full keyboards can be used for gaming as well as work, Numeric Keypads allow numeric text input only and are usually used for specific applications (ATM machines, tills), Full size keyboards are larger than many modern computer systems ( tablets, laptops and phones) so aren’t very portable. Digital cameras use an image sensor chip to capture the image, rather than the film used by a traditional camera. e) Barcode reader. The bank's code number and cheque number are printed on the cheques with a special type of ink that contains particles of magnetic material that are machine readable. A mouse can be used to control the position of the cursor on the screen, but it cannot be used to enter text into the computer. Artists can transfer their drawing skills to the computer.

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