The Multi-Color Graphics Array or MCGA is a video subsystem built into the motherboard of the IBM PS/2 Model 30 , introduced in April 1987, and Model 25 , introduced later in August 1987; no standalone MCGA cards were ever made.
6-569: MCGA may refer to: IBM Multi-Color Graphics Array Maritime and Coastguard Agency , in the United Kingdom Magnus Chase and the Gods of Asgard , a fantasy novel series by Rick Riordan . Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title MCGA . If an internal link led you here, you may wish to change
12-542: A refresh rate of 60 Hz , and 320 × 200 with 256 colors (out of an 18-bit RGB palette of 262,144 ) at 70 Hz. The display adapter uses a DE-15 connector, sometimes referred to as HD-15. MCGA is similar to VGA in that it had a 256-color mode (the 256-color mode in VGA was sometimes referred to as MCGA) and uses 15-pin analog connectors. The PS/2 chipset's limited abilities prevent EGA compatibility and high-resolution multi-color VGA display modes. The tenure of MCGA
18-538: The incompatibility with EGA video modes ( 320 × 200 , 640 × 200 , or 640 × 350 , all in 16 colors). Some games, including point-and-click adventures from Sierra On-line and Lucasfilm Games , as well as simulation and strategy titles from Microprose , solved this problem for low-resolution titles by supporting the MCGA's 320 × 200 256-color mode and picking the colors most resembling the EGA 16-color RGB palette, while leaving
24-445: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=MCGA&oldid=1031305745 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Multi-Color Graphics Array The MCGA supports all CGA display modes plus 640 × 480 monochrome at
30-431: The other available colors in that mode unused. Higher resolution titles were often unsupported unless graphics could be converted into either MCGA low or high ( 640 × 480 monochrome, which would also support 640 × 400 and 640 × 350 with some letterboxing) resolution mode in an acceptable fashion. An alternative approach used by a small number of (generally earlier) games was to use four-color CGA assets but make use of
36-729: Was brief; the PS/2 Model 25 and Model 30 were discontinued by 1992, and the only manufacturer to produce a clone of this display adapter was Epson , in the Equity Ie and PSE-30 , since the VGA standard introduced at the same time was considered superior. The 256-color mode proved most popular for gaming. 256-color VGA games ran fine on MCGA as long as they stuck to the basic 320 × 200 256-color mode and didn't attempt to use VGA-specific features such as multiple screen pages. Games lacking support for 256-color graphics were forced to fall back to four-color CGA mode (or not run at all) due to
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