Resolution

Resolution

• Resolution refers to the sharpness and clarity of an image. 
• The term is most often used to describe monitors, printers, and bit-mapped graphic images.
• For graphics monitors, the screen resolution signifies the number of dots (pixels) on the entire screen.

• For example, a 640-by-480 pixel screen is capable of displaying 640 distinct dots on each of 480 lines, or about 300,000 pixels. 
• The actual resolution ranges for each of these grades is constantly shifting as the technology improves.
• This translates into different dpi measurements depending on the size of the screen. 

• Printers, monitors, scanners, and other I/O devices are often classified as high resolution, medium resolution, or low resolution respectively.
• In the case of dot-matrix and laser printers, the resolution indicates the number of dots per inch.
• For example, a 300-dpi (dots per inch) printer is one that is capable of printing 300 distinct dotsin a line 1 inch long. This means it can print 90,000 dots per square inch.