"The Neo Geo is a cartridge-based arcade and home video game system released in 1990 by Japanese game company SNK. The hardware featured comparatively colorful 2D graphics and high-quality sound.
The MVS (Multi Video System), as the Neo Geo was known to the coin-op industry, offered arcade operators the ability to put up to 6 different arcade titles into a single cabinet, a key economic consideration for operators with limited floorspace. With its games stored on self-contained cartridges, a game-cabinet could be exchanged for a different game-title by swapping the game's ROM-cartridge and cabinet artwork. Several popular franchise-series, including Fatal Fury, The King of Fighters, Metal Slug and Samurai Shodown, were released for the platform.
The Neo Geo system was also marketed as a very costly home console, commonly referred to today as the AES (Advanced Entertainment System). The Neo Geo was marketed as 24-bit, though it was technically a 16-bit system with a 8-bit Zilog Z80 as coprocessor. The coprocessor was generally used for sound processing."
Source: Wikipedia, "Neo_Geo_(console)", available under the CC-BY-SA License.