AS level Computer Science Karteikarten am Compression Flashcards, erstellt von Zephyr F am 14/01/2019.
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Erstellt von Zephyr F
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Erstellt von Zephyr F
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Describe what is meant by compression.
Name the two types of compression.
Why do we specifically compress image files?
Alexis wants to send a TIFF file of an avocado to her friend Ethan via 4g. He suggests that she compresses the file. Explain why he would say this.
Bryony wants to stream a YouTube video of Earthbound. Explain why the video file would need to be compressed.
Give a brief summary of the differences between lossy and lossless compression.
Lossy or Lossless?
Allows the original file to be restored.
Lossy or Lossless?
Compresses to a much smaller file size than the other.
Lossy or Lossless?
Compresses the file to the point that the original file cannot be restored.
Fill in the blanks:
When compressing a file, the more it is compressed, the _____ the quality of the file.
How would the following file be compressed?
How would an audio file be compressed?
Describe what is meant by lossless compression and explain how it works.
Lossy or Lossless?
Would be used to compress a text file.
Lossy or Lossless?
Would be used to compress an audio file.
Sebastian has written an algorithm for a cash register. He wishes to send it to a client over email but must compress the file. Which type of compression should he use, explain your answer.
