The TK 2000 microcomputer, produced by the Brazilian company Microdigital Eletrônica Ltda, was presented to the public during the 1983 Computer Fair and launched in 1984. It was a clone of the

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manufactured by

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. Based on the 6502 CPU, the machine was partially compatible with

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software and hardware. Some software was developed specifically for the machine, including productivity programs and games. In 1985 the TK2000/II was released and in 1987 the machine was discontinued.

Details

* CPU -

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6502 The MOS Technology 6502 (typically pronounced "sixty-five-oh-two" or "six-five-oh-two") William Mensch and the moderator both pronounce the 6502 microprocessor as ''"sixty-five-oh-two"''. is an 8-bit microprocessor that was designed by a small ...

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

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layout. * Expansion - 1 slot * Interfaces / Ports - TV output, RGB monitor, printer, joystick * Storage - cassette recorder (1500

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), external 5¼ floppy drive (140 Kb, double density) * Operating system -

BASIC Basic or BASIC may refer to: Science and technology * BASIC, a computer programming language * Basic (chemistry), having the properties of a base * Basic access authentication, in HTTP Entertainment * Basic (film), ''Basic'' (film), a 2003 film ...

, TKDOS 3.3 (

Apple DOS Apple DOS is the disk operating system for the Apple II computers from late 1978 through early 1983. It was superseded by ProDOS in 1983. Apple DOS has three major releases: DOS 3.1, DOS 3.2, and DOS 3.3; each one of these three releases was foll ...

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.

TK 2000/II Color Computer 128Kb

This versions adds a 64KB memory expansion, totaling 128KB, 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.

References