PAL (Phase Alternating Line) is the analog television standard used by European, Australian, and Asian Amiga models, delivering a 50Hz refresh rate with 625 total scan lines (576 visible) and a horizontal frequency of 15.625kHz. Amiga software designed for PAL typically displays at resolutions like 320×256 or 640×256 in non-interlaced modes, offering more vertical resolution than NTSC but running at 50 frames per second instead of 60Hz, which affected game timing and compatibility with software imported from NTSC regions. The standard required users to have PAL-compatible monitors or televisions, and many demos and games were optimized specifically to utilize PAL's extra screen space and timing characteristics.