Which Design program relies on pixels to convey an image?

Which Design program relies on points to convey an image?

How is resolution measured? (i.e. what is the difference between a high-resolution vs. a low-resolution image?)

What is a good resolution for printing?

How can you tell if a print's resolution was too low?

What causes an image from the internet to appear tiny when pasted into a 300ppi document in PS or AI?

What will happen if this image is free-transformed to fit a 300ppi document?

If a vector image is scaled up, what happens to its quality?

By default, is text vector or raster?

What’s a benefit to working in vector over raster?