Lossy Vs Lossless

What is the purpose of compressing digital information?

• To make it easier to store

• To make it easier to send over the internet

• To reduce the amount of space it takes up

• All of the above

What is lossy compression?

• Compressing data without losing any details

• Throwing away some information to save space

• Compressing data using patterns

• None of the above

What is an example of lossy compression?

• Compressing an image to a lower resolution

• Compressing a song to a smaller file size

• Compressing a video to a smaller file size

• Compressing text using patterns

What is lossless compression?

• Compressing data without losing any details

• Throwing away some information to save space

• Compressing data using patterns

• None of the above

How does the text compression widget work?

• It substitutes repeated words with symbols

• It finds patterns in the text to compress

• It compresses the text using lossy compression

• It reduces the size of the dictionary

What is the goal of data compression algorithms?

• To represent information in the smallest format possible

• To reduce the size of the dictionary

• To increase the amount of space needed for storage

• To remove all patterns from the data

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

• Lossy Compression
• Lossless Compression

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

• Lossy Compression
• Lossless Compression

A set of instructions for the computer to follow

• Algorithm
• Iteration

What would you use compression for?

• Making an image file smaller
• Modifying an image