lecture notes

lossless compression (GIF)
    e.g. run length encoding
lossy compression (JPG, JPEG)
don't save as JPEG until the end

http://en.wikipedia.org/wiki/Vector_Graphics
http://en.wikipedia.org/wiki/Raster_graphics

vector graphics are sharper when zoom in
file size smaller

Macromedia Flash

http://en.wikipedia.org/wiki/Scalable_Vector_Graphics

http://www.w3schools.com/

WinSCP Download

Excel
literals
formulas begin with =
operators
can refer to other cells
A1 style
as opposed to R1C1 style
built in functions
SUM, AVERAGE