Basic Concepts of Compression and File Formats
What does file compression do?
Makes a file smaller
What does lossy compression do?
Removes some data permanently
What is bandwidth?
Amount of data transferred in time
Why is compression useful for internet use?
It helps files load faster
What does lossless compression do?
Keeps all data
What is resolution?
Number of pixels in an image
What happens when a file is compressed?
It takes less space
Which type of compression keeps the original quality?
Lossless
What is colour depth?
Bits used for each pixel's colour
Which file format is often used for compressed images?
.jpg
Which type of compression reduces quality?
Lossy
What is bit rate?
Amount of data processed in time
What is WAV used for?
Uncompressed audio
Which file type is best for compressing text?
Lossless compression
What is sample rate?
Samples taken per second