SESSION 20

This is my litel edit about the school.

   SESSION 19

a) JPG, TIFF, PNG, and GIF. 

JPG:(Joint Photographic Experts Group) is a lossy compression method.

TIFF:  (Tagged Image File Format) format is a flexible format that normally saves eight bits or sixteen bits per color (red, green, blue) for 24-bit and 48-bit totals.

PGN:(Portable Network Graphics) file format was created as a free, open-source alternative to GIF.

GIF:(Graphics Interchange Format) is in normal use limited to an 8-bit palette, or 256 colors (while 24-bit color depth is technically possible).

b) It's PNEG

c) it's GIF or PNG