11. The photographs contained 1100 scan lines with a maximum resolution of 14.9-19.8 m. 12. This register specifies the distance of the Vertical fine scrolling in scan lines . 13. PCX image data is stored in rows or scan lines in top-down order. 14. ANTIC adds one to this value and displays the resulting number of scan lines . 15. The system used by WRNY had 48 scan lines with 7.5 frames per second. 16. The maximum value range covers fine scrolling 16 scan lines from 0 to 15. 17. Vertical Fine Scrolling for Map modes only one scan line tall is logically not practical. 18. This register tracks the scan line currently being generated. 19. Normally a character cell has 8 scan lines , 0-7. 20. The position of a framing mask before the Nipkow disk determines the scan line orientation.
