Microdigital TK82C

Historia

TK82C was a Sinclair ZX81 clone made by Microdigital Eletronica Ltda., a computer company located in Brazil. The TK82C (the C letter stands for Científico, or Scientific in English) was replaced by the TK83 (it used a ULA similar chip, as the original ZX81) and by the TK85 (a 16 KB RAM version with a case similar to ZX-Spectrum), more robust and with a better design. Microdigital later produced the TK90X and TK95, which were clones of the ZX Spectrum.

Características

Lenguajes  	Sinclair BASIC (extended in 82C & 83)
Teclado  	Membrane 40 Teclas
CPU  	Z80A
Velocidad  	3.25 MHz
Co-procesador  	ULA custom chip in TK-83
RAM  	2 KB up to 16 KB (82 & 82C) or 64 KB (83)
ROM  	4 KB (82), 8 KB (82C & 83)
Modos de Texto  	32 chars. x 24 lines
Modo gráfico  	64 x 22 dots
Colores  	Monochrome
Sonido  	Beeper
Tamaño/Peso  	Approx. 17.5 (W) x 23 (D) x 3.8 (H) cm / 340 g
Puertos de entrada/salida  	TV/RF, Bus expansion, tape recorder In/Out, Joystick, Alimentacion
Fuente de alimentación  	External 10V Fuente de alimentación unit
Perifericos  	All of the Sinclair and third sources Perifericos

Curiosidades

The TK82C (the C letter stands for Científico, or Scientific in English) was replaced by the TK83 (it used a ULA similar chip, as the original ZX81) and by the TK85 (a 16 KB RAM version with a case similar to ZX-Spectrum), more robust and with a better design. Microdigital later produced the TK90X and TK95, which were clones of the ZX Spectrum.