Computer Science 1033A/B Lecture Notes - Lecture 2: Binary Code, Cmyk Color Model

• School: Western University
• Department: Computer Science
• Course: Computer Science 1033A/B
• Professor: Laura Reid

Document Summary

Digitization: process of translating a piece of info into bits (0/1) Huffman: least # bits for common letter, most for uncommon. With 8 bits/1 byte we can encode 28 (256) different characters: computers use binary because they use electricity and can distinguish between a high volt or a low volt. Numbering systems: binary 2 binary digits/bits, octal 8 digits, decimal 10 digits. Analog vs. digital (digitizing: converting to digital. Sampling how often do i take a sample (pixel) to represent parts of the thing (how many parts will i break the thing up into) The more samples, the clearer the thing is. Quantizing how many discrete values (bits) will it use to represent the parts of the thing. How many bits (more bits = more colours: colour. Ink when applied removes (subtracts) the white. Adding light to a black background (monitor)