Changes

On systems connected with a composite, s-video or rf cable the color of the video signal is encoded using either NTSC or PAL. While NTSC and PAL has become synonymous with 60 and 50hz, the color encoding is independent of refresh rate, with the Dreamcast popularising "PAL-60" modes in PAL regions. Note that a RGB or component video signal is not inherently NTSC or PAL coded. When playing on an emulator, [[NTSC filters]] can be used to produce an image similar to playing on a TV. SECAM was a third color standard but due to the majority of countries using it being behind the iron curtain, few consoles would use that format, and consoles and home computers released in France would often use RGB SCART cables instead. ;ColorspacesThe overwhelming majority of consoles uses the RGB colorspace, storing colors as color triplets, often resulting in colordepths powers of 8 (64, 512, 4096, 32768 and so on). A few systems, such as those by Atari as well as the NES, instead used a Color/Luminance scheme, with 4 bits determining the hue, utilising a property of NTSC/PAL encoding by delaying the color subcarrier, with one or more values instead omitting the signal resulting in a greyscale image, with the remaining bits determining the brightness.