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  • Categoty: representing data. State how the binary system is used to represent characters in ASCII.
    A 7-bit binary number is used to represent each of the 128 unique characters
  • Category: binary and hex conversion. Question: Convert the hexadecimal number 3F into binary.
    00111111
  • Category: binary storage Question: How many bits are required to store an image that is 800 × 600 pixels?
    11,520,000 bits
  • Q: What is data compression?
    Reducing file size to save space
  • Q: What is run-length encoding used for?
    To shorten repeated data sequences (e.g., AAAA → 4A).
  • Q:What’s the main difference between lossy and lossless compression?
    Lossy removes data; lossless keeps all data.
  • Category: storing data. How the binary system could be used in storing a real-life sound recording as an audio file?
    through a process called digital sampling, where the continuous analog sound wave is measured thousands of times per second
  • Q:How do SaaS, PaaS, and IaaS differ in control and flexibility?
    SaaS = least control, IaaS = most, PaaS = in between.
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