Which scanning device consists of a stepper motor and a CCD sensor? A. Drum scanner B. Slide scanner C. Flatbed scanner D. None of the above Which of the following device is not an optical recognition device? A. MICR B. OMR C. OCR D. Microphone Which of the following devices makes use of photoelectric cells […]
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What are pointing devices? List different types of pointing devices. Explain the basic functioning of mechanical and optical mouses with the help of sketches. How does light pen help in inputting data into a computer system? Which input device is used for playing games? Explain it in detail with the help of a diagram.
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Which of the following device is not a media input device? A. Microphone B. Webcam C. Digital camera D. Graphics tablet 1. What is meant by an input device? What is the importance of an input device in a computer system? List different categories of input devices. Explain all the categories of keys found on
How are OMR devices used for recognising the characters in the document to be scanned? Explain briefly the basic function of an MICR device. How does bar code reader help in recognising the characters on the labels? Defi ne digital camera. Explain the basic features of a digital camera. Briefly explain the different types of
Explain the different technologies used in the touchscreens. What are scanning devices? Explain the basic characteristics of these devices. Explain hand-held scanners and drum scanners in detail. What is meant by optical recognition? What are the basic components of the OCR devices? Explain each component briefly.
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What does voice recognition system mean? Explain the different methods used for identifying the voice of the user in the voice recognition system. What are data acquisition sensors? What are media input devices? Explain any two media input devices briefly. How can we enter data into a computer system with the help of graphics tablet?
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Which of the following units can be used to measure the speed of a printer? A. Characters per inch (cpi) B. Dots per inch (dpi) C. Pages per minute (ppm) D. None of the above Which of the following devices are capable of producing large-format drawings like graphs and construction drawings? A. Dot matrix printers
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Which of the following is not an output device? A. Scanner B. Plotter C. Printer D. Speaker Which of the following monitors are commonly used with desktop computers? A. CBT monitors B. CRT monitors C. CPT monitors D. None of the above Which of the following are the properties of a printer? A. Resolution B.
Explain briefly any five pointing devices with the help of diagrams. What are flatbed scanners? Explain the basic function of a slide scanner. Which of the following printers print by spraying ink on the paper? A. Daisy wheel printer B. Dot matrix printer C. Drum printer D. Laser printer
Which of the following are the components of a projector? A. Optic system B. Displays C. Electron beam D. Both A and B Which of the following are portable projectors? A. Conference room projectors B. Fixed installation projectors C. Ultralight projectors D. All of the above Which of the following devices are included in a
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