The TK83 was a home computer produced by the Brazilian company Microdigital Eletrônica Ltda. and introduced in August 1982. ^{[1] [2] [3] [4] [5]} By December 1984, it was no longer being advertised by Microdigital, being discontinued in 1985. ^{[6] [7]}

The TK83 was a clone of the Sinclair ZX81, ^{[8] [5] [9] [10] [11] [12]} and can for all practical purposes, be considered a version of the TK82C with repagged memory and including the SLOW function which permitted the video be shown during processing. ^[3]

General information

The TK83 had the Zilog Z80A processor running at 3.25 MHz, 2  KB RAM (expandable to 64 KB) and 8 KB of ROM that included the BASIC interpreter. ^{[3] [11] [9]}

The keyboard was made of layers of conductive (membrane) material and followed the Sinclair layout with 40 keys.

Video output was sent via a RF modulator to a TV set tuned at VHF channel 3, and featured black characters on a white background. The maximum resolution was 64 x 44 pixels, based on semigraphic characters useful for games and basic images (see ZX81 character set).

There was one expansion slot at the side of the machine, a cassette interface (data storage in tapes at 300 to 4200 baud, ^[5] with audio cables were supplied with the computer for connection with a regular tape recorder) ^[3] and a DIN joystick connector. ^[1]

References

This computing article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e

This computer hardware article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e