Free Data storage & compression questions for IGCSE Computer Science (0478), part of Data representation. Each question has the answer and the marking points an examiner would look for.
Generate a full Data Storage & Compression worksheet →All Data representation questionsState what is meant by the term lossless compression.
State what is meant by the term lossy compression.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | Compression that reduces file size without permanently losing data Compression that reduces file size without permanently losing data B1 | 1 |
| (b) | Compression that permanently removes some data Compression that permanently removes some data B1 | 1 |
State what is meant by the term lossy compression.
State what is meant by the term lossless compression.
| Part | Answer and marking points | Marks |
|---|---|---|
| (a) | Compression that permanently removes some data Compression that permanently removes some data B1 | 1 |
| (b) | Compression that reduces file size without permanently losing data Compression that reduces file size without permanently losing data B1 | 1 |
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