The PMD 85-3, produced by Tesla Bratislava since 1988, added colour TV output. Character encoding included all Czech and Slovak characters, and a Cyrillic version was also produced. System memory was enlarged to 8 KiB and monitor included routines for communication with PMD 32 floppy disk assembly, a ROM integrity test and also "PMD 85-2 compatibility mode" by relocation. The PMD 85-2 was an inspiration for the MAŤO personal computer, also sold as a self-assembly kit. It had different hardware and very limited compatibility with PMD; its BASIC, memory structure and I/O were almost, but not completely the same, but tape format was different. It was intended as a home computer, but never really caught on. Later, the Didaktik Alfa and Beta were produced as more reliable clones. See also MAŤO External links Tesla PMD-85 Infoserver - Emulator PMD 85 and its clones for Windows DJ Martin Schotek's page DIY schematic and description Computer-related introductions in 1985 Home computers Science and technology in Czechoslovakia