with only digital logic ports and the analogue part outside the ULA chip, exactly as in the TK90X. It was reported that the TK95 provided more compatibility with the original ZX Spectrum (e.g., the game Mikie runs only on the TK95, not on the TK90X. the D1 diode was disconnected and some changes to the ROM were made). Curiously, some games became incompatible due to this modification. TK90X users in Brazil used to make a switch to choose the original TK90X (or TK95) ROM or the ZX Spectrum ROM internally, so they could use almost all of the Spectrum's software. Export model During that period, Brazilians were not allowed to import computers and therefore the TK90X became the first affordable color computer for Brazilians. It was successful in other Latin America countries, such as Uruguay and Argentina, but the export model used a different circuit board and schematics, and an original Ferranti ULA from the ZX Spectrum. Because of its affordability, many commercial software programs were locally developed for the first time for use of small businesses in Latin America to run on the TK90X and millions of users had their first computer experience with it. There's an active user base of enthusiasts of this computer, with dedicated websites discussing software preservation, peripherals and homebrew development and modifications. References External links TK90X/95 Mailing list - Mailing list about TK90X/95/Spectrum (English Speakers are Welcome) ZEsarUX - ZX Second-Emulator And Released for UniX (GPL) Microdigital Eletrônica Computer-related introductions in 1985 ZX Spectrum clones Goods manufactured in Brazil