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Manufacturer SEGA
Type Arcade
CPU Hitachi SH-4 @ 200 MH
GPU NEC-VideoLogic PowerVR 2 (PVR2DC/CLX2) @ 100 MHz
Sound CPU Yamaha AICA Super Intelligent Sound Processor @ 45 MHz
Sound Chip TBA
Memory Main Ram: 32 megs
Main Memory: 32 MByte
Graphic Memory: 16 MByte
Sound Memory: 8 MByte
Controllers Custom
Year 1998

Platform Information

from wikipedia

The NAOMI (New Arcade Operation Machine Idea) is the successor to the Sega Model 3. Sega first demonstrated NAOMI publicly at the 1998 Amusement Machine Show (an annual trade show hosted in Tokyo by the Japan Amusement Machinery Manufacturers Association). After the show, Sega released the first NAOMI title to the Japanese market: The House of the Dead 2.

NAOMI uses some of the same electronic components as Sega's Dreamcast home game console: Hitachi SH-4 CPU, PowerVR Series 2 GPU (PVR2DC), and Yamaha AICA Super Intelligent Sound Processor based sound system. However, NAOMI has twice as much system memory, twice as much video memory, and four times as much sound memory.

Multiple NAOMI boards can be clustered to improve graphics performance and to support multiple-monitor output. A special game cabinet for the NAOMI, NAOMI Universal Cabinet, houses up to sixteen boards for this purpose. Multiple-board variants are referred to as NAOMI Multiboard hardware, which debuted in 1999.

Sega's NAOMI Satellite Terminal Hardware infrastructure enabled developers to make games with multiple control terminals, so several people could sit and play a game that has one large screen. The Satellite Terminal Hardware links up to 10 NAOMI boards. Multi-terminal systems like this made use of Memory Card Reader and Dispenser (MCRD) technology. Derby Owners Club (2000) and World Club Champion Football (2002) are two applications of these technologies.

Some NAOMI titles read game data from a GD-ROM optical disc, which is also the Dreamcast's software medium. Game data can also be stored in a 168-megabyte bank of solid-state ROM. GD-ROM support requires a specialized DIMM board in addition to the GD-ROM drive. When the NAOMI powers-on, it copies data from the comparatively slow GD-ROM to the faster DIMM memory. Thereafter, the game executes entirely in RAM.

Unlike Sega's previous arcade platforms (and most other arcade platforms in the industry), NAOMI is widely licensed for use by other game publishers. Among the licensees were Bandai Namco Games, Capcom, Sammy Corporation, and Tecmo. Some of the games developed by licensees were Mazan, Marvel vs. Capcom 2: New Age of Heroes (Capcom 2000), Dead or Alive 2 (Tecmo 1999) and Guilty Gear XX (Sammy 2002). Sammy developed a derivative platform, the Atomiswave, which has interchangeable game cartridges.

The last NAOMI titles were released in 2008: Sega's Melty Blood: Actress Again and Subtle Style's Akatsuki Blitzkampf Ausf. Achse.

Media Devices

  • GD-ROM Discs
    • Original media is not readable on PC
  • Disc Images
  • ROM Images

Available Emulators

Below is a list of available emulators for this platform.