20090904-Representations

20090904-Representations - CSE115: Introduction to Computer...

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Click to edit Master subtitle style 2/14/11 CSE115: Introduction to Computer Science I Dr. Carl Alphonce 219 Bell Hall alphonce@cse.buffalo.edu 11
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2/14/11 Announcements If this is your first class, pick up a syllabus. Recitations begin next week Make your name signs Cell phones off! 22
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2/14/11 Today’s lessons Information encoding/decoding Examples digital photos mp3s morse code binary numbers Bit strings 33
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2/14/11 Images 44 Each pixel encodes  the amount of RED,  GREEN and BLUE  (RGB).  This is an  additive color  scheme. Printing uses CYAN,  MAGENTA, YELLOW  and BLACK (CMYK).   This is a subtractive  color scheme.
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2/14/11 Morse Code Dots, dashes and spaces used to represent letters/digits http://www.planetofnoise.com/midi/morse2m Two features: variable length encodings not a prefix code 55
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66 Spaces of different  lengths is needed to  decode  unambiguously. Without spaces, 
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This note was uploaded on 02/13/2011 for the course CSE 115 taught by Professor Decker during the Fall '08 term at SUNY Buffalo.

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20090904-Representations - CSE115: Introduction to Computer...

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