Lifting The Lid: How Computers Work

30 Questions

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We watched this video in class together - you can watch the whole thing again before answering these questions or stop and start the video and answer the questions as you go. Click here to play the video: Lifting the lid


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Questions and Answers
  • 1. 
    A general term for devices that plug into a computer is:
    • A. 

      Software

    • B. 

      Hardware

    • C. 

      Peripherals

    • D. 

      Programs

  • 2. 
    What does the cooling fan do?
    • A. 

      Cool the CPU

    • B. 

      Cool the screen

    • C. 

      Keep the person using the computer cool

    • D. 

      Keep dust away from the CPU

  • 3. 
    CPU stands for central __________ unit (One word)
  • 4. 
    What does the computer use RAM for?
    • A. 

      To store programs and files when it is turned off

    • B. 

      To store instructions and data while it is running

    • C. 

      To cool the CPU

    • D. 

      To read data on a CD-ROM

  • 5. 
    BIOS stands for:
    • A. 

      Basic Inside Outside System

    • B. 

      Basic Input Output System

    • C. 

      Broadband Internet Output Service

    • D. 

      Biometric Input Output System

  • 6. 
    What tells a computer what to do when it starts up?
    • A. 

      RAM

    • B. 

      ROM

    • C. 

      CPU

    • D. 

      BIOS

  • 7. 
    What does ROM stand for? ____ ____ ______  (Three words)
  • 8. 
    Where are programs and files stored permanently?
    • A. 

      Floppy Disk Drive

    • B. 

      CD-Rom

    • C. 

      Hard Disk Drive

    • D. 

      CPU

  • 9. 
    Which of these is NOT a card that you would find in a computer?
    • A. 

      Modem

    • B. 

      Network

    • C. 

      Video

    • D. 

      Dance

    • E. 

      Sound

  • 10. 
    A keyboard is an output device.
    • A. 

      True

    • B. 

      False

  • 11. 
    A monitor is an output device.
    • A. 

      True

    • B. 

      False

  • 12. 
    Speakers are an output device.
    • A. 

      True

    • B. 

      False

  • 13. 
    A mouse is an input device.
    • A. 

      True

    • B. 

      False

  • 14. 
    How does the CD or DVD drive read the information on the disk? 
    • A. 

      Electro-magnetic head

    • B. 

      Laser

    • C. 

      Camera

    • D. 

      Scanner

  • 15. 
    What number is represented in Binary by 1111?
    • A. 

      4

    • B. 

      22

    • C. 

      14

    • D. 

      15

  • 16. 
    One dot on a screen is called a
    • A. 

      Pixel

    • B. 

      Bit

    • C. 

      Spot

    • D. 

      Light

  • 17. 
    Why is the hard disk so important?
    • A. 

      Because of the huge amount of data it can store

    • B. 

      Because it allows you to store files separately from your computer

    • C. 

      Because it makes the computer work quickly

  • 18. 
    0's and 1's are recorded as high and low points and read with a laser on a
    • A. 

      CD-Rom

    • B. 

      Hard disk

    • C. 

      Floppy disk

    • D. 

      Motherboard

  • 19. 
    Why is formatting a disk important?
    • A. 

      So that is looks pretty

    • B. 

      So that the laser can read it

    • C. 

      So the computer knows where to write and read the data

    • D. 

      None of these

  • 20. 
    RAM is quicker to read and write to than the Hard Disk because it has no moving parts.
    • A. 

      True

    • B. 

      False

  • 21. 
    What makes RAM random?
    • A. 

      It is unpredictable

    • B. 

      It has a grid of storage locations for data and instructions so things can be found quickly

    • C. 

      It systematically looks in one location after another to find data and instructions

  • 22. 
    Lots of fast RAM makes your computer
    • A. 

      Work quickly

    • B. 

      Work slowly

    • C. 

      Blow up

    • D. 

      Able to permanently store more information

  • 23. 
    How many bits in a byte?
    • A. 

      8

    • B. 

      10

    • C. 

      800

    • D. 

      1000

  • 24. 
    How many bytes in a megabyte?
    • A. 

      1

    • B. 

      1000

    • C. 

      100,000

    • D. 

      1,000,000

  • 25. 
    What is the most basic computer language called?
    • A. 

      Basic

    • B. 

      Visual Basic

    • C. 

      Machine Code

    • D. 

      Morse Code

  • 26. 
    What is the name of the unit used to measure the speed of the clock in a computer?
    • A. 

      Terabyte

    • B. 

      Gigahertz

    • C. 

      Hertzagig

    • D. 

      Megahertz

  • 27. 
    In which order does a computer function?
    • A. 

      Output - Process - Input

    • B. 

      Process - Input - Output

    • C. 

      Input - Process - Output

    • D. 

      Input - Output - Process

  • 28. 
    BONUS QUESTION - This answer will not be found in the video.   A barcode scanner is an output device
    • A. 

      True

    • B. 

      False

  • 29. 
    BONUS QUESTION - This answer will not be found in the video.   A touch-screen is
    • A. 

      An input device

    • B. 

      An output device

    • C. 

      Both

    • D. 

      Neither

  • 30. 
    BONUS QUESTION - This answer will not be found in the video.   These days a basic new PC has 4Gb of RAM - how many phone books worth of information could this hold? (Remember, 256Mb RAM can store the equivalent of 4 phone books).
    • A. 

      64

    • B. 

      32

    • C. 

      16

    • D. 

      128