Final answer:
The aspect ratio of a standard-definition program is typically 4:3, compared to the 16:9 aspect ratio used in high-definition television. The 4:3 ratio was standard for older television broadcasts and home video formats.
Step-by-step explanation:
The aspect ratio of a standard-definition program is typically 4:3. This means that for every 4 units of width, there are 3 units of height. This aspect ratio was widely used for television broadcasts and home video formats before the wide adoption of high-definition television (HDTV), which generally uses an aspect ratio of 16:9. It's important to note that the move towards the 16:9 aspect ratio was driven by the desire to create a viewing experience more akin to that of human peripheral vision, as well as to better accommodate widescreen film formats.
The aspect ratio of a standard-definition program is 4:3. This means that for every 4 units of width, there are 3 units of height. In other words, the picture is wider than it is tall, and it is a common aspect ratio used for older televisions and video content.For example, if a standard-definition program has a width of 400 pixels, the height would be 300 pixels to maintain the 4:3 aspect ratio.