Codimex CD-6809

8-bit home computer produced in Brazil From Wikipedia, the free encyclopedia

Codimex CD-6809

The Codimex CD-6809 was an 8-bit home computer produced in Brazil by the company Codimex Imp.Exp. de Computadores Ltda from Porto Alegre.[1][2][3] It was introduced in early 1983, during the Brazilian "Market Reserve" period, and based on the TRS-80 Color Computer.[4][5][6][7]

Quick Facts Manufacturer, Release date ...
Codimex CD-6809
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Codimex CD-6809
ManufacturerCodimex
Release date1983; 42 years ago (1983)
Lifespan1985; 40 years ago (1985)
Units sold380
Operating systemMicrosoft Extended Color BASIC, Tandy RSDOS, Microware OS-9, TSC Flex9
CPU6809E @ 0.895 / 1.79 MHz
Memory32 kB
DisplayRF out, PAL-M
GraphicsMC6847 video display generator
Sound6-bit DAC
Backward
compatibility
TRS-80 Color Computer
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The CD-6809 was the first Brazilian home computer compatible with the TRS-80 Color line.[4][8] It was marketed as a computer for small business, entertainment and self employed professionals, and was sold with a 149-page user manual.[9][10]

Around 380 units were produced at the Porto Alegre plant.[11] The machine can be emulated under MAME.[12]

Technical features

The basic features of the Codimex CD-6809 are similar to the TRS-80 Color Computer:[2]

  • CPU: Motorola 6809E, 895 kHz to 1.79 MHz
  • Memory:
    • ROM: 16 KB (containing "Color BASIC 1.1" and "Extended Color BASIC 1.0")
    • RAM: 32 KB
  • Keyboard:
    • Built-in, 53-keys
  • Display: Motorola 6847, 9 colors
    • Text mode (with 32 x 16 characters)
    • Low resolution graphics (with 64 x 32 pixels)
    • Medium and high resolution graphics (up to 256 x 192 pixels, 2 colors per pixel)
  • Expansion port (cartridges, 40 pin)
  • Other ports:

The machine had a unique "Reverse Video" switch on the back, that displayed a black background with green characters.[2]

See also

References

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