EECS 1520 Chapter Notes - Chapter 2: Moving Picture Experts Group, Analog Device, Joint Photographic Experts Group

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

Document Summary

Ch 2: bits, bytes, and representation of information. Computers are digital processors and represent information in bits. Bits is a binary digit, a number that is either 0 or 1. Analog: conveys the idea of values that change smoothly as something else changes. In an analog device, something varies smoothly and continuously in proportion to a change in something else. Small change in one thing=sudden small change in another or none. Digital data is east for computers to work with. This is because it can be stored, transported and processed in many ways regardless of its original source. Can be compressed by squeezing out redundant or unimportant information. Can be encrypted for security and privacy. Can be shipped anywhere via the internet. Can be stored in an endless variety of devices. Digital systems can be much more easily extended. Pixel: set of detectors that measure the amount of red, green and blue light.