TK95


The TK95 microcomputer was the evolution of the TK90X made in the second half of the 1980s by Microdigital Eletronica, a company located at São Paulo, Brazil that manufactured some ZX81 clones before and a ZX80 clone. The first version was launched in November 1986.
The case was redesigned and the keyboard was said to be "semi-professional", with the some additional commands that did not exist in the ZX Spectrums, and more compatibility with the original ZX Spectrum.
There was a version with 48 kilobytes of RAM. Inside, the same processor: Z80A running at 3.58 MHz, a ROM chip and some RAM chips. Microdigital did some reverse engineering to develop a chip with the functions of the original ULA from Sinclair/Ferranti. The modulator was tuned to VHF channel 3 and the TV system was PAL-M. The cassette interface ran at a faster speed than the Spectrum. Only two peripherals were released by Microdigital a light pen interface and a parallel printer interface. Some other small companies in Brazil released clone versions of Interface 1 joysticks and interfaces for 5¼" PC drives. The games had questionable legality being close to copies of the originals and the fans of the ZX Spectrum computer in Brazil were counted in tens of thousands.