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Class Notes for COMPSCI 105 at University of Massachusetts Amherst (UMASSA)

UMASS-AMHERSTCOMPSCI 105William VertsSpring

COMPSCI 105 Lecture Notes - Lecture 7: Colour Banding, Joint Photographic Experts Group, Scalable Vector Graphics

OC3148552 Page
28 Oct 2014
23
First stores colors directly, last 3 use a palette. Not a good choice for the web due to size. Converting a . bmp to . jpg changes some pixels. Graphic
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UMASS-AMHERSTCOMPSCI 105William VertsSpring

COMPSCI 105 Lecture Notes - Lecture 2: File System Permissions, Dna, Binary Number

OC3148552 Page
28 Oct 2014
19
Labels for numbers using different sets of symbols. We use base 10 (decimal) but it isn"t special. Used in le permissions on web servers (linux) Uses t
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UMASS-AMHERSTCOMPSCI 105William VertsSpring

COMPSCI 105 Lecture Notes - Lecture 9: West Coast Computer Faire, Bob Frankston, Dan Bricklin

OC3148551 Page
28 Oct 2014
19
Prior to 1978 spreadsheets were just that- a piece of paper spread out on your desk, ruled off into rows and columns. You manually lled information int
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UMASS-AMHERSTCOMPSCI 105William VertsSpring

COMPSCI 105 Lecture Notes - Lecture 5: Primary Color, Color Model, Cyan

OC3148553 Page
28 Oct 2014
22
Singleton or opening tags may contain optional attributes: < enclosing wrapper; rst and last lines of code. Text, color, embedded graphics, tables, lis
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UMASS-AMHERSTCOMPSCI 105Verts I I WilliamFall

COMPSCI 105 Lecture Notes - Lecture 1: Stepped Reckoner, Blaise Pascal, Jacquard Loom

OC11472182 Page
6 Sep 2016
9
First half of the lecture: introductions going over the syllabus and course website. Second half of the lecture: history of computers. Any sufficiently
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UMASS-AMHERSTCOMPSCI 105William VertsSpring

COMPSCI 105 Lecture Notes - Lecture 1: Significant Figures, Foil Method, Scientific Notation

OC3148553 Page
28 Oct 2014
34
Byte: packet of 8 bits (french word is octet ) 1 bit gives 2^1 = 2 patterns: 0 or 1. 2 bits gives 2^2 = 4 patterns: 00, 01, 10, 11. 3 bits gives 2^3 =
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UMASS-AMHERSTCOMPSCI 105William VertsSpring

COMPSCI 105 Lecture Notes - Lecture 15: Lossy Compression, Harry Nyquist, Moving Picture Experts Group

OC3148551 Page
28 Oct 2014
30
Sound hits your eardrum, vibrates small hairs in ear canal connected to nerves. Sound hits diaphragm in a microphone, changes vary pressure waves into
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