TIFF, PICT are popular format among others, but their performance and strength are not the same. TIFF stands for Tag Image File Format. Among other factors a printer quality is measured by how much dpi it prints. If a printer is said that it can print 300dpi, that means it has a capability to put 300 dots with in 1 inch square. If a printer produces 1200dpi or above, it is said to be a high resolution printer.
Resolution also apply to computers' screens.
If your computer has an EGA adopter with 320 by 200 pixels, it is a low resolution screen. Mostly, today's monitors come with an adopter called Super VGA with a resolution of 1024 by 768 pixels. A sets of related characters including letters, numerals, and symbols that are designed and used for printing. Drawing programs are suppose to be friendly and easier to use. A user necessarily doesn't have to now the anatomy of PostScript.