---
title: Microdigital TK-2000
categories:
- Computers
types:
- Professional Computer
origins:
- Brazil
years:
- '1984'
cpus:
- '6502'
params:
  name: TK-2000
  image: /media/museum/photos/microdigital_kt2000_system_s1.jpg
  logo: /media/museum/logos/microdigital_tk2000_logo.gif
  company: /companies/microdigital
  company_name: Microdigital
  specs:
  - label: NAME
    value: TK-2000
  - label: MANUFACTURER
    value: Microdigital
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: Brazil
  - label: YEAR
    value: '1984'
  - label: END OF PRODUCTION
    value: '1988'
  - label: BUILT IN LANGUAGE
    value: BASIC interpreter
  - label: KEYBOARD
    value: Full stroke 54 key with arrow keys
  - label: CPU
    value: '6502'
  - label: SPEED
    value: 1.2 MHz
  - label: RAM
    value: 64 KB or 128 KB (Model II)
  - label: VRAM
    value: 1 KB (Text mode) or 8 KB (Graphics mode)
  - label: ROM
    value: 16 KB
  - label: TEXT MODES
    value: 40 chars. x 24 lines
  - label: GRAPHIC MODES
    value: 40x48 x 8 colors, 280x192 x 6 colors and 280x192 x 6 colors with text
  - label: COLORS
    value: '8'
  - label: SOUND
    value: TV (by RF out)
  - label: SIZE / WEIGHT
    value: 37.6 (W) x 32 (D) x 6.7 (H) cm
  - label: I/O PORTS
    value: 1 expansion slot, rf and composite video (PAL-M), 2 joystick, tape recorder In/Out, 1 parallel.
  - label: BUILT IN MEDIA
    value: None
  - label: OS
    value: Apple) DOS 3.3 compatible
  - label: POWER SUPPLY
    value: external power supply unit (110/220V)
  - label: PERIPHERALS
    value: All Apple II expansion cards & peripherals
  - label: PRICE
    value: Unknown
  tabs:
  - emulators
  - links
  emulators:
  - title: TK2000 II Color Computer Emulator
    url: http://tk2000.sourceforge.net/
    platform: Other platform
    text: TK2000 Emulator in Java
  links:
  - title: Clube do TK-90x
    url: http://www.tk90x.com.br/TK2000.html
    text: detailed differences between TK-2000and Apple II
  comments:
  - author: Giovanni Nunes (Brazil)
    date: Saturday 22nd December 2007
    text: Both TK2000 and TK2000-II (a later model w/ 128Kb of RAM) are clones of MPF-II computer.
  oc_id: 1161
  source:
    url: https://web.archive.org/web/20230331033256/http://www.old-computers.com/museum/computer.asp?c=1161
    date: '2023-03-31'
---

The TK-2000 was a clone of the [Apple IIc](/museum/apple-iic/) for its Electronics part; and a copy of the [Atari 1200XL](/museum/atari-1200-xl/) for the casing part.

For copyright reasons, Microdigital preferred to say that it was compatible with the [Multitech MPF-II](/museum/multitech-mpf-ii/), an obscure Taiwanese computer which was somewhat compatible with the Apple II; but also added in its brochure that "*a major part of Apple DOS software is compatible with the TK-2000*" :-)

On top of Apple II features, the TK-2000 offered 64 KB of RAM, a sound generator, a PAL/M TV/RF modulator, a parallel printer connector and the ability to connect simulteneously two tape recorders. On the other hand, there were no expansion slots; which resulted in compatibility problems with Apple software that used original Apple hardware I/O.

Picture from **http://cobit.mma.com.br**. Thanks to **Ericson Benjamim** for his help.

---

**Igor Morgado** remembers:\
Its good to remember on good feature in TK2000 that didn't exists in other apples. It has a internal assembly code interpreter, it could be called with LM command, with it the programmer could see the code of all basic programs in machine code.\
Some adressing are different from Apple (as peek and poke basic commands).\
Some tape instructions are different too.

**Chester** specifies:\
I used a TK2000, and believe me: it is \*not\* an Apple IIc clone. For starters, it does not have a real text mode (text was drawn on the graphic string when the output ROM routine was called, and not when you wrote on the area reserved for text/low-res graphics on the Apple II). Software had to suffer slight modifications to run on it (and several software was modified, including games such as Gobbler and even DOS 3.3).\
And copyright was not an issue, since Brazil on that time had a "market reserve", which allowed Brazilian computer manufactures to clone foreign machines at will, only being required to get approval from the government, which was routinely given (the only known exception being the Unitron Mac clone, but it was on a later period, when politics were under gradual changes here).