Digital Information CodeHS Unit 5

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Across
  1. 4. A system for representing numbers, which includes a base (like 2, 10, or 16) and a set of digits.
  2. 5. The Base-10 number system we use every day, which uses the digits 0 through 9.
  3. 6. A component of a digital image that represents a specific color, such as Red, Green, or Blue.
  4. 10. A system for representing a color by describing the intensity of its Red, Green, and Blue color channels.
  5. 12. The smallest element of a digital image displayed on a screen. It is short for "picture element" and is typically a small dot of a single color.
  6. 14. The letters immediately following the last dot in a file name (e.g., .txt, .jpg, .mp4), which tells the operating system what type of file it is.
  7. 15. A simplified representation of something more complex. It hides the difficult details to help you focus on the important concepts.
  8. 17. A Base-2 number system that uses only the digits 0 and 1. It's the native language of all computers.
  9. 19. A standard for audio and video digital compression, often used for streaming video and storing high-quality video files (often with the file extension .mp4).
  10. 20. A data compression technique that permanently removes some data to achieve a much smaller file size. The original data cannot be perfectly restored.
Down
  1. 1. A Base-16 number system that uses 16 unique symbols: 0-9 and A-F. It is often used as a shorthand way to represent long binary values.
  2. 2. A data compression technique that reduces file size without losing any information. The original data can be perfectly restored when decompressed.
  3. 3. The total number of pixels in a digital image or on a display screen, often expressed as width x height (e.g., 1920x1080).
  4. 7. A simple lossless compression algorithm that replaces a long run of identical data values (like many white pixels in a row) with a count and the single value.
  5. 8. To reverse the process of compression, restoring the compressed data to its original or near-original size and format so it can be viewed or used.
  6. 9. The process of converting information from one format (like text or a picture) into another format (like a sequence of bits) for storage or transmission.
  7. 11. A public copyright license that allows creators to choose how they want to share their work with others, often permitting free use with some conditions.
  8. 13. A way of representing information using only two options, typically represented by 0 and 1 (also called a Bit).
  9. 16. A continuously changing signal or data that is not limited to a finite set of values, like a sound wave or a traditional clock with moving hands.
  10. 18. A common lossy compression file format for digital images, short for Joint Photographic Experts Group.