Data Compression

Who WROTE about the first data compression algorithm in 1948?

• Dr. Weaver

• Claude Shannon

• Kim Phipps

• Robert Fano

What is Huffman coding?

• A video compression

• A lossy compression

• Assigns shorter codes to more frequent characters

• An image compression

True or False: Data Compression duplicates the size of files to make operation more efficient, easier, or faster.

• True

• False

What is Data Compression used for?

• Increasing the size of data

• Faster digestion

• Easier three crown in Clash Royale

• Storage and Transportation

Which compression algorithm is used primarily for transporting text?

• MP3

• ZIP

• GIF

• RAR

What are the two types of compression?

• Linear and Lossless

• Lossy and Forging

• Lossy and Lossless

• Lossy and Hidden

What are the four types of tricks?

• Leave-It-Out Trick

• Same-As-Earlier Trick

• Shorter-Symbol Trick

• Higher-Level JPEG Trick

The Same-As-Earlier Trick uses what type of coding?

• Front-copying coding

• Switch-copy coding

• Back-copy coding

• Between-copy coding

The Shorter-Symbol Trick turns the most common parts of a file into what?

• Symbols

• Numbers

• Letters

• Images

What percentage does the Leave-It-Out Trick reduce the image size?

• 10%

• 20%

• 65%

• 75%