Binary Code and Image Representation Quiz
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Questions and Answers

How many bytes of memory would be needed to store the first message if we followed the original method of storing each character individually?

  • 62 bytes (correct)
  • 13 bytes
  • 33 bytes
  • 46 bytes

    • If we store the words and their positions in a lookup table as described, how many bytes are used to store just the positions for the first message?

  • 62 bytes
  • 33 bytes
  • 46 bytes
  • 13 bytes (correct)

    • By storing the words and their positions in a lookup table, what percentage of storage requirements did we save for the first message?

  • 46%
  • 26% (correct)
  • 8%
  • 13%

    • In total, how many bytes were needed to store the words and positions for the first message using the lookup table method?

    <p>46 bytes (C)</p> Signup and view all the answers

    What is an advantage of storing data using a lookup table as shown in the text?

    <p>Saves storage space (A)</p> Signup and view all the answers

    How does the amount of compression achievable vary for data storage?

    <p>Depends on the data being stored (B)</p> Signup and view all the answers

    How many possible characters can be represented using ASCII system?

    <p>256 (C)</p> Signup and view all the answers

    How many bits are used to represent a character in the Unicode system?

    <p>16 (D)</p> Signup and view all the answers

    How many bits does a character take up in storage space in the Unicode system?

    <p>2 bits (A)</p> Signup and view all the answers

    Which system is more suitable for languages with a larger character set other than Standard English?

    <p>Unicode system (C)</p> Signup and view all the answers

    What is the binary representation of the letter A in ASCII?

    <p>01000001 (D)</p> Signup and view all the answers

    In ASCII, how many bytes does a character occupy in terms of storage?

    <p>1 byte (C)</p> Signup and view all the answers

    What is the binary representation for the letter 'u' in ASCII system?

    <p>01110101 (D)</p> Signup and view all the answers

    In the ASCII system, what is the binary representation for the letter 'm'?

    <p>01001101 (B)</p> Signup and view all the answers

    Which term is used to describe converting analogue data into digital data for computer processing?

    <p>Digitization (D)</p> Signup and view all the answers

    What do 1 and 0 represent in a binary representation of a black and white image?

    <p>Black and White pixels (B)</p> Signup and view all the answers

    In a binary code, what does each pixel represent?

    <p>A tiny dot on the screen (C)</p> Signup and view all the answers

    What term is used to describe the data that provides information about the dimensions of an image grid?

    <p>Pixel metadata (A)</p> Signup and view all the answers

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