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Why compression matters

Why compression matters

Flowchart showing an original file splitting into lossless and lossy compression paths, with exact restoration and no quality loss on the lossless side and permanent data loss on the lossy side

Compression reduces file size so data uses less storage and can be transmitted faster. That helps with email attachments, cloud backups, website loading, and streaming.

Compression Lesson

  1. GCSE
  2. /Computer Science
  3. /Compression

Step-by-step lessons on OCR GCSE Computer Science Compression. Each one builds up to exam-style questions. Build strong foundations in binary, logic and core programming constructs before moving on to the more complex algorithm design and evaluation questions.

Lessons