Final answer:
Screen resolution refers to the number of pixels horizontally and vertically used to display content on the screen, with common resolutions listed as width x height like 1920x1080. Resolution affects how clearly details can be seen on the screen.
Step-by-step explanation:
Screen resolution indicates the number of pixels horizontally (c) and vertically (a) that the computer uses to display the letters, numbers, graphics, and background you see on the screen. The overall resolution is typically given as the width times the height, for example, 1920x1080, where 1920 represents the horizontal pixel count and 1080 represents the vertical pixel count.
Resolution is a concept that defines how clearly we can see the details in an image. When we refer to screen resolution, it's related to the size of the smallest object that can be clearly seen and the minimum distance between objects needed to discern them as separate entities. Different devices, like a computer screen versus a printer, treat resolution differently. Lower resolutions are often adequate for screen displays, like for web presentations, because the details can still look fine even with fewer pixels.