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]
 Codimex CD-6809 | |
| Manufacturer | Codimex |
|---|---|
| Release date | 1983 |
| Lifespan | 1985 |
| Units sold | 380 |
| Operating system | Microsoft Extended Color BASIC, Tandy RSDOS, Microware OS-9, TSC Flex9 |
| CPU | 6809E @ 0.895 / 1.79 MHz |
| Memory | 32 kB |
| Display | RF out, PAL-M |
| Graphics | MC6847 video display generator |
| Sound | 6-bit DAC |
| Backward compatibility | TRS-80 Color Computer |
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
editThe 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:
- 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
editReferences
edit- ^ Campos, Daniel. "Codimex CD-6809: A tríade agora está completa! | AMX PROJECT" (in European Portuguese). Retrieved 2023-03-20.
- ^ a b c "Codimex CD6809". Família TRS Color (in Brazilian Portuguese). 2020-08-03. Retrieved 2023-03-20.
- ^ "Codimex CD-6809". MV - Marcos Velasco Software. Retrieved 2023-03-20.
- ^ a b "Equipamentos: CD-6809" (PDF). Micro Sistemas. No. 23. August 1983. p. 42.
- ^ "Codimex 6809". www.old-computers.com. Retrieved 2023-03-20.
- ^ "Como lançar um computador na reserva de mercado". Datassette (in Brazilian Portuguese). 2015-08-13. Retrieved 2023-03-20.
- ^ "Codimex CD-6809 - Material de Lançamento". Datassette (in Brazilian Portuguese). 2015-04-26. Retrieved 2023-03-20.
- ^ Daniel, Campos (2016). "The dawn of the CoCo clones in Brazil". Vintage is The New Old. Retrieved 2023-03-20.
- ^ "Codimex CD-6809 - Apresentação do Projeto para a Secretaria Especial de Informática". Datassette (in Brazilian Portuguese). 2015-05-05. Retrieved 2023-03-20.
- ^ Codimex CD-6809 - Manual Do Usuário (PDF). Codimex. 1983.
- ^ Campos, Daniel (July 2013). "Entrevista: Davi Menda - Sócio-fundador da Codimex" (PDF). Jogos 80. No. 11. p. 17. Archived from the original (PDF) on 2016-10-27.
- ^ "CD-6809". mame.spludlow.co.uk. Retrieved 2023-03-20.
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