notes from class

EXCEL

operators, operands, built in functions. literals, formulas
references

images:
BMP (bitmap)
alternate file formats
which don't take as much space

raster vs. vector
vector is much smaller, smoother

GIF, JPG
one uses lossless compression,
one uses lossy compression

run length encoding
00000000 00000000 00000000 00000000 00000000
01001100 01001100 01001100 00000000

00000000 "500 in binary"
01001100 "3" in binary"

huffman codes
lossless compression

JPG: lossy compression
every time you save a jpeg, it gets worse