iGCSE Compression

Presentation

•

Computers

•

9th - 11th Grade

•

Medium

Kieran Haren

Used 5+ times

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20 Slides • 16 Questions

iGCSE Computer Science - Compression

by Kieran Haren

Open Ended

What does compression mean?

Type response here

Multiple Choice

Makes the file smaller by deleting parts of the file permanently (forever)

Lossy Compression

Lossless Compression

Multiple Choice

Makes the file smaller by giving repeated patterns/colours a specific code

Lossy Compression

Lossless Compression

Multiple Choice

What would you use compression for?

Making an image file smaller

Modifying an image

Multiple Choice

Lossless compression permanently deletes the data

True

False

Multiple Choice

Lossy compression would be suitable for text files

True

False

Multiple Choice

There are _____ different types of compression

Multiple Select

Select the advantages for lossy compression

Makes the file much smaller

Will send much quicker

A very simple algorithm

The quality will not be affected much

Multiple Select

Select the advantages for lossless compression

Makes the file much smaller

Will send quicker

A very simple algorithm

The quality will not be affected much

Multiple Choice

What is compression?

To convert one file to another

To reduce the size of data to save space

To minimize the time taken for a file to be downloaded

To compress something by pressing it very hard

Multiple Choice

Compression in general makes it _______ to send, upload and stream data

Quicker

Slower

Multiple Choice

JPEG stands for...

Joint Photo Exempted Grade

Joint Photographic Experts Group

Junior Photographic Export Group

Multiple Choice

Uncompressed audio and video files require less memory than compressed files....

True

False

Multiple Choice

Which of the following are not in a compressed format?

JPEG

MPEG

Bitmap

MP3

Multiple Choice

Compression looks for _______ data

Unnecessary

Repeated

Multiple Choice

Which of the following would not be suitable for Lossy Compression?

Images

Sounds

Videos

Text

iGCSE Computer Science - Compression

by Kieran Haren

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