images

• What do computers use to store and process data?

  A sequence of zeros and ones
• What are the small squares that make up an image called?

  Pixels
• How many pixels can an image have?

  Thousands, millions, or billions
• What does each pixel in an image represent?

  One color
• What happens when the resolution of an image is increased?

  The quality of the image improves
• What is the trade-off when increasing image resolution?

  More space is needed to store data
• What is color depth in relation to images?

  The number of colors in an image
• How does a computer represent two colors in an image?

  One color as zero and another as one
• What happens when the color depth is doubled?

  Access to more colors is provided
• How does increasing color depth affect file size?

  It increases the amount of space needed
• How many bits are needed for a color depth of two?

  Four bits
• How many bits are needed for a color depth of four?

  Eight bits
• What is metadata in relation to images?

  Information describing the image
• What can metadata include about an image?

  Resolution and color depth
• Why is metadata important for images?

  It helps the computer draw the image
• What are the key concepts related to image quality?

  • Resolution: Number of pixels in an image
  • Color Depth: Number of colors represented
  • Trade-off: Higher quality increases file size
  • Metadata: Information describing the image