CBSE Class 12 Computer Science Fundamentals of Computer MCQs

Question. External devices such as printers, keyboards and modems are known as _________
A. Special Buys
B. Add on Devices
C. Peripherals
D. All of the above

Answer C. Peripherals

Question. An example of peripheral equipment is _______
A. Printer
B. CPU
C. Spread Sheet
D. None of the Above

Answer A. Printer

Question. Trackball is an example of a/an _____
A. Output device
B. Printing device
C. Pointing device
D. None of the Above

Answer C. Pointing device

Question. Which is the best position for operating the mouse?
A. Tail away from the user
B. Tail facing the right
C. Tail facing the left
D. Tail towards the user

Answer D. Tail towards the user

Question. First Computer mouse was built by_______
A. Douglas Engelbart
B. William English
C. Robert Zawacki
D. Von Neumann

Answer A. Douglas Engelbart

Question. Which of the following is not a hardware?
A. Processor
B. Printer
C. Mouse
D. Java
Answer D. Java

Question. The transfer of data from a CPU to peripheral devices of computer is achieved through ________
A. Modem
B. Interface
C. Buffer
D. I/O Ports

Answer D. I/O Ports

Question. The wheel located between the two standard buttons on a mouse is used to ________
A. click in Web pages.
B. scroll.
C. click and select items.
D. jump to different Web pages

Answer B. scroll.

Question. Any data and instruction entered in the memory of a computer is__________
A. Storage
B. Output
C. Input
D. Information

Answer C. Input

Question. Which input device resembles an upside-down mouse?
A. Trackball
B. Pointing stick
C. Track pad
D. Touch pad

Answer A. Trackball

Question. The work done by a computer operator is displayed in which part of computer?
A. CPU
B. VDU
C. ALU
D. None of the Above

Answer B. VDU

Question.Which involves photo scanning of the text character by character, analysis of the scanned in image , and then translation of the character image into character code?
A. OCR
B. OMR
C. Bar code Reader
D. None of the Above

Answer A. OCR

Question. Bar-code readers use light to read ______
A. UPCs
B. UPSs
C. POSs
D. optical marks

Answer A. UPCs

Question. The display size of a monitor is measured _________
A. diagonally.
B. horizontally.
C. vertically.
D. None of the Above

Answer A. diagonally

Question. The computer or system peripherals that receives data from processing unit are called ___________
A. Input Devices
B. Output Devices
C. Both (A) and (B)
D. None of the Above

Answer B. Output Devices

Question. ________ printers are the printers that print one character at a time.
A. Laser
B. Drum
C. Chain
D. Dot Matrix

Answer D. Dot Matrix

Question. Which of the following is an example for Character printer?
A. Laser
B. Drum
C. Chain
D. Daisy Wheel

Answer D. Daisy Wheel

Question. Which of the following is an example for line printer?
A. Laser
B. Drum
C. Daisy Wheel
D. Dot Matrix

Answer B. Drum

Question. A displaying screen in which text is presented in one colour and background is of any other colour is called ________
A. monochrome screen
B. high resolution screen
C. low resolution screen
D. medium resolution screen

Answer A. monochrome screen

Question. LED stands for _________
A. Low Emission Display
B. Liquid Emitting Display
C. Less Emitting Diode
D. Light Emitting Diode

Answer D. Light Emitting Diode

Question. A marker on the computer screen used to show the current position is called _________
A. coloured marker
B. position checker
C. cursor
D. None of the Above

Answer C. cursor

Question. The higher the resolution of a monitor, the _________
A. larger the pixels.
B. closer together the pixels.
C. further apart the pixels.
D. less clear the screen is.

Answer B. closer together the pixels.

Question. The rate at which scanning is repeated in a CRT is called________
A. Resolution
B. Refresh rate
C. Bandwidth
D. None of the Above

Answer B. Refresh rate

Question. Which of the following device is used to enter the text and numerical data in a computer?
A. Plotter
B. Scanner
C. Printer
D. Keyboard

Answer D. Keyboard

Question. In laser printers, printing is achieved by deflecting laser beam on to __________ surface of a drum.
A. Magnetic
B. Electric
C. Photosensitive
D. None of the Above

Answer C. Photosensitive

Question. Printer resolution is usually measured in ________
A. Characters Per Minute (CPM)
B . Pixels Per Inch (PPI)
C. Pages Per Minute (PPM)
D. Dots Per Inch (DPI)

Answer D. Dots Per Inch (DPI)

Question. _______ is an input device that converts analog information into digital form.
A. Plotter
B. Track Ball
C. Light Pen
D. Digitizer

Answer D. Digitizer

Question. Which of the following is non-emissive display?
A. LED
B. LCD
C. Both (A) and (B)
D. None of the Above

Answer B. LCD

Question. Which of the following is used at Point of Sales to input product information?
A. Graphic Tablet
B. MICR
C. Bar Code reader
D. Magnetic Stripe reader

Answer C. Bar Code reader

Question. Which input device is used for inserting pin numbers for credit cards?
A. Graphic Tablet
B. Numeric pad
C. Bar Code reader
D. Magnetic Stripe reader

Answer B. Numeric pad

Question. __________ printers print the characters by striking them on the ribbon which is then pressed on the paper.
A. Impact
B. Non Impact
C. Both (A) and (B)
D. None of the Above

Answer A. Impact

Question. Which input device is used to read information on a credit card?
A. Graphic Tablet
B. Numeric Keyboard
C. Bar Code reader
D. Magnetic Stripe reader

Answer D. Magnetic Stripe reader

Question. LCD stands for _________
A. Light Crystal Display
B. Low Crystal Display
C. Less Crystal Display
D. Liquid Crystal Display

Answer D. Liquid Crystal Display

Question. Which of the following works as mouse?
A. Keyboard
B. Scanner
C. Track ball
D. None of the Above

Answer C. Track ball

Question. In OCR processing, When a character is recognized, it is converted into_______ code.
A. binary
B. ASCII
C. Both (A) and (B)
D. None of the Above

Answer B. ASCII

Question. Laser printers and Ink-jet printers are an example of _______
A. Impact
B. Non Impact
C. Both (A) and (B)
D. None of the Above

Answer B. Non Impact

Question. Which of the following is used as principal flight control in the cockpit of many air crafts?
A. Graphic Tablet
B. Joy Stick
C. Bar Code reader
D. Magnetic Stripe reader

Answer B. Joy Stick

Question. TFT stands for ________
A. Thick Film Transistor
B. Thin Film Transistor
C. Thin Film Transmitter
D. Thick Film Transmitter

Answer B. Thin Film Transistor

Question. __________ is a special type of optical scanner used to recognize the type of mark made by Pen or Pencil.
A. Optical Character Reader
B. Bar code Reader
C. Optical Mark Reader
D. None of the Above

Answer C. Optical Mark Reader

Question. _________ is a device used for reading bar coded data (contains light and dark lines).
A. Graphic Tablet
B. Numeric pad
C. Bar Code reader
D. Magnetic Stripe reader

Answer C. Bar Code reader

Question. Which input device is usually a standard feature of laptops?
A. Graphic Tablet
B. Numeric Keyboard
C. touch pad
D. Magnetic Stripe reader

Answer C. touch pad

Question. __________ are devices that convert electrical energy into light.
A. Emissive Displays
B. Non-Emissive Displays
C. Both (A) and (B)
D. None of the Above

Answer A. Emissive Displays

Question. Which of the following input device is used in Banks to read magnetised characters on a Cheque?
A. OCR
B. MICR
C. Bar Code reader
D. Magnetic Stripe reader

Answer B. MICR

Question. _________ printers print the characters without using ribbon and it can print a complete page at a time.
A. Impact
B. Non Impact
C. Both (A) and (B)
D. None of the Above

Answer B. Non Impact

Question. A thin plate or board that contains electronic components is called ___________
A. Hard Disk
B. RAM
C. ROM
D. Circuit Board

Answer D. Circuit Board

Question. A ___________ is used to create a digital representation of a printed document or photograph.
A. Video Digitizer
B. Scanner
C. Monitor
D. None of the Above

Answer B. Scanner

Question. Impact printers can be divided into ______ types.
A. Four
B. Six
C. Three
D. Two

Answer D. Two

Question. Which of these is a pointing and drop device?
A. Scanner
B. Printer
C. Keyboard
D. Mouse

Answer D. Mouse

Question. A parallel port is most often used by ________
A. Scanner
B. Printer
C. Keyboard
D. Mouse

Answer B. Printer

Question. A hard copy would prepared on a _______
A. Dot matrix Printer
B. Plotter
C. Type Writer Terminal
D. All of the above

Answer D. All of the above