Paint and image-editing software, such as Adobe Photoshop, generate bitmap images (not to be confused with the Photoshop Bitmap color mode), also called raster images. The images use a grid of small squares, known as pixels, to represent graphics.
Inflamed tonsils. Tonsillitis is most often caused by common viruses, but bacterial infections can also be the cause. The most common bacterium causing tonsillitis is Streptococcus pyogenes (group A streptococcus), the bacterium that causes strep throat.Other strains of strep and other bacteria also may cause tonsillitis.onsillitis is most often caused by common viruses, but bacterial infections can also be the cause.
Report Abuse. Most often, tonsillitis is caused by a virus. Less often, it is caused by the same bacteria that cause strep throat. In rare cases, a fungus or a parasite can cause it.