Mini-VGA
Mini-VGA connectors are proprietary and non-standard alternative video connectors that were used on some laptops and other computer systems in place of a standard VGA connector. Apple, HP, and Asus each introduced separate connectors using the same moniker of "mini-VGA", but which are otherwise physically incompatible with each other.
Apple's mini-VGA ports may be found on some older Apple computers, including iBooks, eMacs, certain PowerBooks, and some iMacs. In addition to a more compact form-factor, Apple's mini-VGA ports also have the added ability to output composite as well as S-Video, in addition to VGA signals, through the use of EDID. When used for S-Video, S-Video's chrominance and luminance signals replace VGA's red and green channels, while for composite video, the signal is output through VGA's blue channel.
HP's version of mini-VGA can be found in HP Minis and HP TouchSmarts. Samsung Chromebooks, as released in June 2011, feature their own implementation of mini-VGA. Various other Samsung laptops, such as the Series 7 and Series 9, also featured this new connector. Mini-VGA ports can also be found on several laptops previously manufactured by Sony.
With the introduction of mini-DVI, as well as Mini DisplayPort, mini-VGA connectors were largely superseded in favor of these newer, more versatile connector types.