44 lines
2.4 KiB
Markdown
44 lines
2.4 KiB
Markdown
## Presentation:
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- First demonstrated in November 1998 at JAMMA, since just before the release of The House of the Dead 2 in Japan.
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- The Sega Naomi (New Arcade Operation Machine Idea) is the successor to the Sega Model 3 hardware.
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### A development of the Dreamcast home game console, the NAOMI and Dreamcast share the same hardware components:
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- Hitachi SH-4 CPU,
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- PowerVR Series 2 GPU (PVR2DC), and
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- Yamaha AICA based sound system.
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NAOMI has twice as much system memory, twice as much video memory, and 4X as much sound memory.
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Multiple NAOMI boards can be 'stacked' together to improve graphics performance, or to support multiple-monitor output.
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A special game cabinet for the NAOMI, **NAOMI Universal Cabinet**, houses up to sixteen boards for this purpose.
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_The other key difference between NAOMI and Dreamcast lies in the game media._
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The Dreamcast reads game data from GD-ROM optical disc, while the NAOMI arcade board features 168 MB of solid-state ROMs or GD-ROMs using a custom DIMM board and GD-ROM drive.
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- In operation, the Naomi GD-ROM is read only once at system power up, loading the disc's contents to the DIMM Board RAM.
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Once loading is complete, the game executes only from RAM, thereby reducing mechanical wear on the GD-ROM drive.
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Unlike Sega's previous arcade platforms (and most other arcade platforms in the industry),
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NAOMI is widely licensed for use by other game publishers including Sega, Namco Bandai, Capcom, Sammy and Tecmo Koei.
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Games such as Mazan, Marvel Vs. Capcom 2, Dead or Alive 2 and Guilty Gear XX were all developed by third-party licensees of the NAOMI platform.
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**An offshoot version of the NAOMI hardware is Atomiswave by Sammy Corporation.**
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After nine years of hardware production, and with new game titles coming in 2008 like Melty Blood: Actress Again and Akatsuki Blitzkampf AC,
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NAOMI is considered to be one of the longest running arcade platforms ever and is comparable in longevity with the Neo-Geo MVS.
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## Technical Specification:
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- Main Processor : Hitachi SH-4 (128 bits) RISC 360 MIPS / 1.4 GFLOPS clocked 200 MHz
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- Video Processor : PowerVR 2 clocked 100 MHz made by Nec (Nec CLX2)
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- Texture mapping
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- Trilinear filtering
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- Micro texturing
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- Specular reflection
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- Gouraud shading
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- Flat shading
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- Anti-aliasing
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- Alpha blending
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- Audio Processor : ARM7 Yamaha XG AICA RISC 32 bits clocked 25 MHz
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