The PMI was used for learning programing machine code in Czech and Slovakian polytechnic university from 1982 year.
It was developed and manufactured in Tesla Piestany factory which core business was to produceo active components like diode, transistor and integrated ciruits, including the MHB 8080A CPU and chip from his family.
It was a basic system, enclosed in a plastic case and precisely based on the MHB 8080A, a Tesla version the 8080 processor.
It had minimal ROM, RAM and I/O capabilities, but enough in schools, to enter, study and run small programs.
Thanks to Jiri Cernohlavek, from Czech Republic, for information and pictures.
Martin Bruno remembers:
I used this computer when I was attending Industrial College Of Electrical Engineering in Eastern Slovakia, town of Michalovce at second class in 1994/95 and this computer was widely used at Slovakian technical schools for learning machine code of 8080 processor.
It was a bit complicated because you had to write program in hex form. Actually it was computer but practically not for home use nor for some entertainment... it was a good form how to scare people about machine code programming :-)
I must to thank my home computer Didaktik M at that time that I learned machine code resp. assembler in much more comfortable way :-)
Dan Handenberg adds:
The computer was originally designed to control printing machines, but the processing was too slow to transfer information fast enough to the peripherals.