Computer science class ix notes 9th class board pattern model paper
Computer science Chapter No-03 Important questions, if you attempt these question you will get InshaAllah 100% marks.
(Chapter-03 Input/Output Devices) Important MCQs
Q.1: Choose the correct option:
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1. ……………key
provide shortcuts to do routines task:
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A. ESC
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B. F1
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C. HOME
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D. None of them
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2. Which are mouse
events?
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A. Left Click
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B. Right Click
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C. Drag
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D. All of them
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3. There are distinct
pauses in:
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A. Continuous
speech
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B. Normal speech
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C. Discrete speech
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D. None of them
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4. The advantage
of track ball over mouse is:
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A. Stationary
occupying less space
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B. Compact and
beautiful
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C. Popular
pointing device
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D. None of them
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5. OCR stands for:
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A. Optical Clear
Reader
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B. Optical
Character Reader
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C. Optical
Character Recognition
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D. None of them
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6. The device that
directly stores images digitally:
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A. Scanner
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B. Digital camera
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C. Light Pen
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D. None of them
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7. LCD stands for:
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A. Liquid Clean
Display
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B. Liquid Crystal
Display
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C. Low Crystal
Display
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D. None of them
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8. The hole in
shadow mask are used for:
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A. To set the
picture quality
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B. To fit its mesh
finely
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C. To align the
electron beams
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D. None of them
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9. CAM stands for:
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A. Computer Added
Mechanism
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B. Computer Aided
Manufacturing
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C. Computer And
Maintains
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D. None of them
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1. The CRD can
hold data:
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A. 700 MB
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B. 750 MB
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C. 800 MB
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D. None of them
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11. LED discharges
portions of ………….to form character or graphics in laser printers:
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A. Paper
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B. Drum
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C. Toner
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D. None of them
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12. SVGA stands
for:
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A. Super Video
Graphic Adapter
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B. Super Video
Graphic Acceleration
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C. Super Video
Graphic Array
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D. None of them
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13. Hard disk is a
…………..disk:
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A. Optical
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B. Magnetic
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C. Both
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D. None of them
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14. Which is not
an output device?
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A. Monitor
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B. Keyboard
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C. Mouse
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D. None of them
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15. In which
printer toner is used:
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A. Dot Matrix
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B. Inkjet
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C. Laser
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D. None of them
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Q.2: Answer the following short questions: 20
- What is a shadow mask?
- Define monitor resolution?
- What is the difference between Hard Copy and Soft Copy?
- What is the voice recognition system?
- Why do we use function keys?
- Where video controllers perform its role?
- Are Daisy-wheel printers loud and slow? Explain.
- What is a plotter?
- What is the difference between Impact and non impact printers?
- How can we stop the pointer while using joystick?
Q.3 Explain in detail the following.
(a) Laser
printers.
(b) Ink
jet printers.