A. Dot per inch - डॉट प्रति इंच
B. Dot per sq. inch - डॉट प्रति वर्ग इंच
C. Dots printed per unit time - प्रति यूनिट समय में डॉट्स प्रिंट किए गए
D. All of above - ऊपर के सभी
In printing, DPI (dots per inch) refers to the output resolution of a printer or imagesetter, and PPI (pixels per inch) refers to the input resolution of a photograph or image. DPI refers to the physical dot density of an image when it is reproduced as a real physical entity, for example printed onto paper.