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The CD " was one of Commodore international on basis of the Amiga 1200 developed play console with CD-ROM drive assembly - and the successors of the CDTVs, a competition product to the CD-i von Philips. The Amiga-1200-Basis was reduced to for playing the necessary and a CD drive assembly was added. Over a module at the back the CD could be extended " however to an adequate Amiga or alternatively to a video CD Player.

The CD " possesses an additional Custom chip, the Akiko, which should simplify primarily conversions of PC and make more complex 3D-Grafik possible opposite the Amiga 1200. 3D-Grafik is traditionally more difficult on Amigas to handle than usual, since the Framebuffer in the bit plane mode unsuitable for it works. In the so-called Chunky mode (that became generally accepted meanwhile system-spreading) to lie all bits, which result in the color of a pixel, directly one behind the other in the memory. In the bit plane mode the complete picture lies several times one behind the other in 1-Bit-Farbtiefe in the memory. If one introduces oneself this bit plan laid on top of each other, one can read the binary value of a pixel color from top to bottom. In this mode an individual pixel by software to change, is complex, and in order to explain, one had to set each pixel of the picture individually for 3D-Grafik by software. Therefore it became generally accepted on the Amiga in the long run to compute 3D-Grafik by means of a Chunky Framebuffers and to convert this afterwards to a bit plane Framebuffer - for this the term Chunky ton planar conversion was in-patriated, and exactly the Akiko chip (apart from other features) implements these in hardware.

The hoped for conversions of PC were missing however, and the main processor, on 14 MHz of clocked 68EC020, was not sufficient without further hardware support, in order to motivate the development from 3D-Spielen to - the Akiko remained unused except for few exceptions.

The CD " was part of a set of consoles, which could not maintain ground at the market. Commodore had considered the Sega mega+ CD as a main competitor. In addition during lifetimes of the CD " the 3DO and the Atari Jaguar appeared. The CD " was last hope Commodores to escape the failure what did not succeed however. In the long run published on the CD " only very few exclusive titles, most plays were conversions of Amiga-1200 or even Amiga-500-Titeln.

Technical data

  • Motorola 68020 (68EC020RC16) with 14.18 MHz (PAL version) and/or 14.28 MHz (NTSC version)
  • 2 MT chip RAM
  • 1 MT ROM with Kickstart ROM 3,1 and integrated cdfs.filesystem
  • 1 KB Flash ROM for storing
  • AGA chip set
  • CD-ROM double speed drive assembly with audio CD playing possibility (software in the ROM integrated)
  • Akiko chip, that was responsible for CD-ROM drive assembly plus further feature (S. o.)
  • Amiga OS 3.1
  • Gamepad, Serial haven, 2 Gameports, interfaces for a key board

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Articles in category "CD32"

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C

» C64 DTV
» CD-i
» CD32
» CDTV
» Channel F
» Colecovision
» Commodore 2000k
» CONTROLLER Pak

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