What is the difference between DPI and PPI?

Related questions

1. Is 600 or 1200 dpi better?
2. Is 72 ppi the same as 300 DPI?
3. Is 200 ppi good quality?
4. What is the best resolution for website images?
5. Does high quality printing use more ink?
6. Is higher DPI better for printing?
7. Is 300 ppi high resolution?
8. What is the resolution of 300 DPI?
9. Is 150 dpi OK for print?
10. How many PPI do I need for high resolution?

Tags

1. #other
2. #pixels
3. #thing
4. #resolution
5. #physical
6. #image
7. #though
8. #number
9. #clarity
10. #referring
11. #terms
12. #difference
13. #document
14. #describe
15. #printed
16. #printing