EECS 1520 Chapter Notes - Chapter 3: Wav, Huffman Coding, Video Codec

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: John Hofbauer

Document Summary

Data basic values or facts; can be unstructured; lost data cannot be restored. Information data that has been organized and/or processed in way that is useful in problem solving; answer questions. Numbers, text, audio, images and graphics, video. Data compression reducing amount of space needed to store piece of data. Bandwidth restrictions that deine maximum number of bits or bytes that can be transmitted from one place to another in ixed amount of time. Compression ratio size of compressed data divided by size of uncompressed data; indication of how much compression occurs; between 0 and 1. Lossless data compression technique, where data can be retrieved without losing any original information. Lossy data compression technique, where information is lost in process of compression. Computers are finite computer memory and other hardware devices only have so much room to store and manipulate certain amount of data.