Thorham is right, with the addition that illusions of scrolling (even parallax scrolling) can be created, and smooth, even if the computer is slow. And the exception that the OS (you mean driver? 3D API?) can be overridden with programs like PowerStrip.
And discomeats, as I wrote, no blitter in the MSX. But in some (Konami) cartridges like Maze of Galious, which usually also had an 8-channel (Yamaha?) synth chip.