Activity 1: Match Compression Terms
Drag each term to its correct meaning.
Compression
Lossy compression
Lossless compression
Faster transfer
Images / sound / video
Text / executable files
| Term | Meaning |
|---|---|
| Reduces the number of bits used to store a file. | |
| Removes some data permanently to reduce file size more. | |
| Keeps all data so the original file can be restored exactly. | |
| A key benefit of smaller files when sending or streaming. | |
| Commonly suitable for lossy compression when some quality loss is acceptable. | |
| Must use lossless compression to avoid losing essential data. |
Activity 2: Build the Compression Decision
Put the steps in order for compressing a code file while keeping it usable.
Transfer the smaller file more quickly.
Choose lossless compression (no data loss).
Decompress back to the original exact file.
Identify it as a text or executable file.
Compress by encoding data differently.
Step 1
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Step 2
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Step 3
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Step 4
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Step 5
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Activity 3: Choose the Best Method
Scenario: A school website stores student profile photos and exam software installer files. Explain which compression method fits each and why.
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