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M > MICRODIGITAL > Tk-95     


The goal with the TK95 was to offer a true Spectrum compatible system with a case and keyboard as strong and convenient as a Commodore 64.

The inside of the machine was neverthless quite similar to its predecessor, the TK-90, with some ROM improvements that increased the degree of compatibility and corrected some bugs (ROM No Maskable Interrupt) of the original Sinclair and Timex models.

Two BASIC command were added, TRACE and UDG (User Defined Graphics) that allowed the specific Brazilian characters to be printed. As the machine was only dedicated to Brazilian market, all the error messages were in Portuguese language.

The TK-95 was one of the last machine made by Electronica. It didn't sell well because of the massive appearence and great success of MSX computers in South America.

Thanks to Dimitri Kokken for the picture

More information from Mario Villar (Uruguay):
Not all peripherals marketed for the ZX Spectrum were compatible with this machine, specially the Joystick Interfaces.
Microdigital also made peripherals for the TK line under it's own brand: An optical pen, RS-232 Interface, and modems.
In my country (Uruguay), this machine had great success, leaving it to implement a system information service over modem (like a BBS) specially dedicated to that machines, with a modem and interface built here. Also, there was a High Speed tape drive called "Hilow", developed in Uruguay. It has a Snapshot button (NMI interrupt?) and two speeds. The few units ever made were incredibly reliable, still working today.


please help we have zx spectrum 48k and one 128k program running at 6mhz using external ram and snapper discs from velesoft site

Saturday 6th April 2013
Roger Jowett (Ulster Londonderry)
sam coupe


NAME  Tk-95
MANUFACTURER  Microdigital
TYPE  Home Computer
ORIGIN  Brazil
YEAR  April 1986
KEYBOARD  Full stroke 57 keys
CPU  Zilog Z80 A
SPEED  3.58 MHz
RAM  48 KB
ROM  16 KB (Basic & OS)
TEXT MODES  32 chars. x 24 lines
GRAPHIC MODES  256 x 192 dots
COLORS  8 with two tones each (normal and bright)
SOUND  1 voice / 10 octaves (via TV set)
SIZE / WEIGHT  Unknown
I/O PORTS  Expansion port, tape-recorder (1200 bauds), RF video out, Joystick, Bus expansion
POWER SUPPLY  External 9V DC power supply unit
PERIPHERALS  all of the Sinclair and third sources peripherals
PRICE  Unknown

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