Final answer:
The resolution of a computer monitor is defined by its pixel dimensions, which are the number of columns and rows of pixels. This determines the clarity and detail of the images displayed on the screen. The term 'megapixels' is mostly used in the context of digital photography and refers to the total number of pixels in an image.
Step-by-step explanation:
The resolution at which a computer monitor displays an image is typically defined as the pixel dimension, which refers to the number of horizontal and vertical pixels that make up the display. This can be thought of as the grid of pixels with a certain number of columns and rows. For instance, a common resolution you might hear of is 1920x1080, which indicates that the screen has 1920 columns of pixels across and 1080 rows of pixels down.
Additionally, image quality can also be expressed through megapixels (MP), particularly in the context of digital photography. A megapixel equals one million pixels, and you can calculate the megapixels by multiplying the photo's pixel width by its height and then dividing by one million.
While resolution is key, other terms such as pixels per inch (ppi) are also important, as they relate to the density of pixels in an image and can affect the sharpness and clarity when viewed at various distances.