TK 2000

TK 2000
TK 2000 II Color Computer
Also known asTK 2000 Color Computer, TK 2000 II Color Computer
ManufacturerMicrodigital Eletrônica
TypePersonal computer
Release date1984; 41 years ago (1984)
Discontinued1987; 38 years ago (1987)
Operating systemApplesoft BASIC compatible, TKDOS 3.3 (Apple DOS 3.3 compatible)
CPUMOS Technology 6502 @ 1,02 MHz
Memory64KB (expandable to 128KB)
Removable storageFloppy Disks, Audio Cassette
DisplayRF TV out or RGB; 40×24 text; 280×192 graphics; 8 colors
SoundBeeper

The TK 2000 microcomputer, produced by the Brazilian company Microdigital Eletrônica Ltda,[1][2][3] was presented to the public during the 1983 Computer Fair and launched in 1984.[4] It was a clone of the Microprofessor II manufactured by Multitech.[5][3] Based on the 6502 CPU, the machine was partially compatible with Apple II Plus software and hardware.[5][6] Some software was developed specifically for the machine, including productivity programs and games.[7][8]

In 1985 the TK2000/II was released and in 1987 the machine was discontinued.

Details

  • CPU - MOS Technology 6502 at 1,02 MHz
  • Memory - 16 KB ROM, 64 KB RAM (expandable to 128KB)
  • Sound - one channel, up to 4 octaves with tones and semitones, 5 different tempos for each note, by software.
  • Video - 280 x 192 with 8 colors, low-resolution mode emulates 16 colors through dithering.
  • Keyboard - mechanical, 54 keys with QWERTY layout.
  • Expansion - 1 slot
  • Interfaces / Ports - TV output, RGB monitor, printer, joystick
  • Storage - cassette recorder (1500 baud), external 5¼ floppy drive (140 Kb, double density)
  • Operating system - BASIC, TKDOS 3.3 ( Apple DOS 3.3 compatible)

Models

TK 2000 Color Computer

This is the initial 1984 model.

TK 2000/II Color Computer

A 1985 rebranding of the initial model.[9][6][10]

TK 2000/II Color Computer 128Kb

This versions adds a 64KB memory expansion, totaling 128KB,[10] compatible with the Saturn memory expansion standard. Two hardware revisions of this model are known: TD112 with a satellite board, mounted next to the main board and connected to the main board via auxiliary wiring and TD122 with all components consolidated on a single board.

See also

References

  1. ^ "TK2000". Museu da Tecnologia (in Brazilian Portuguese). Retrieved 2024-07-21.
  2. ^ "Microcomputador TK 2000". Museu de Tecnologia da Unoeste (in Brazilian Portuguese). 2015-12-18. Retrieved 2024-07-21.
  3. ^ a b "MICRODIGITAL TK-2000". OLD-COMPUTERS.COM : The Museum. 2023-10-02. Archived from the original on 2023-10-02. Retrieved 2024-07-21.
  4. ^ "TK 2000 no mercado". Micro Sistemas (32): 30. May 1984.
  5. ^ a b "O microcomputador Microdigital TK-2000 de 1984". MCC - Museu Capixaba do Computador (in Brazilian Portuguese). 2024-03-15. Retrieved 2024-07-21.
  6. ^ a b "Binary Dinosaurs - Microdigital TK2000". www.binarydinosaurs.co.uk. Retrieved 2024-07-21.
  7. ^ "Microideia catalog".
  8. ^ "Programas para TK-2000".
  9. ^ TK 2000/II Manual Técnico (PDF).
  10. ^ a b "Ficha Técnica do TK-2000 Color Computer". apple2pro.com.br. Retrieved 2024-07-21.