Exploring images

• Secondary storage is used for long-term storage of data and programs.


  True
• JPEG uses lossy compression, which reduces file size by discarding some image data.
• What is the purpose of data storage?

  Keeping digital information
• Match the storage type with its example:

  Removable Storage ↔️ USB flash drive

  Cloud Storage ↔️ Google Drive
• PNG uses lossless compression to preserve all image details.


  True
• PNG is suitable for graphics with text because it supports transparency.


  True
• What is the primary purpose of image compression?

  Reducing file size
• PNG and GIF are examples of formats that use lossless compression.


  True
• A common example of lossy compression is JPEG
• Data storage is the process of keeping digital information using hardware devices and software systems
• Secondary storage is used for long-term storage of data and programs
• JPEG uses lossy compression and is suitable for photographs.
• JPEG is best for photographs but does not support transparency.
• An example of a lossless compression method is GIF.
• Vector images are composed of a grid of pixels.

  False
• What does image resolution measure?

  Pixels in an image
• What is the primary purpose of compression techniques for images?

  Reduce file size
• Higher resolution images lead to larger file sizes.
• For what purpose are high-quality images with larger file sizes preferred?

  Printing or professional use
• What factors determine the choice of an image file format?

  Image quality, file size
• JPEG supports transparency in images.

  False
• Lossy compression removes some image data to reduce file size.
• Lossless compression preserves all original image data
• Lossy compression reduces file size by discarding some image data
• Raster images are defined by mathematical equations and geometric shapes.

  False
• Raster images are ideal for logos and icons that need to be displayed at different sizes without losing quality.

  False
• Images with more colors, such as 24-bit, have larger file sizes than those with fewer colors
• Lossless compression preserves image quality but may result in larger file sizes.


  True
• Like PNG, n preserves all image data but results in larger file sizes
• Image resolution refers to the number of pixels
• Storage formats are essential for organizing and accessing data on storage devices
• Metadata is additional information stored within an image file beyond the visual content
• Image retrieval is the process of searching for and retrieving images based on various criteria
• Which image format is best for photographs with complex color gradients but does not support transparency?

  JPEG
• Which image format is an example of lossy compression?

  JPEG
• Lossy compression is more suitable for photographs where some quality loss is acceptable for smaller file sizes.

  True
• Match the compression type with its characteristics:

  Lossless ↔️ High image quality, larger file size

  Lossy ↔️ Lower image quality, smaller file size
• Match the storage type with its examples:

  Primary Storage ↔️ RAM, Cache Memory

  Secondary Storage ↔️ HDD, SSD

  Removable Storage ↔️ USB flash drives, SD cards

  Cloud Storage ↔️ Google Drive, Dropbox, iCloud
• What factors influence the choice of an image file format?

  Image quality, file size, transparency, animation support
• Which image file format is commonly used for simple animations?

  GIF