An acronym that stands for many things. The most relevant to us is the Phase Alternate Line (or Phase Alternation Line). The standard for color television broadcast throughout much of Europe. The United States uses the NTSC standard, which is used in all of North America and many other parts of the world. PAL has good color transmission and sends an analog signal at 625 lines of resolution, 25 interlaced frames per second, whereas NTSC delivers 525 lines of resolution at approximately 30 interlaced frames per second. The two formats are incompatible with one another, but there are video adapters that enable computer monitors to be used as television screens to support both NTSC and PAL signals.