# PMI-80

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{{Short description|Single board microcomputer}}{{More citations needed|date=March 2026}}thumb|PMI-80 board
The '''PMI-80''' was a [single-board](/source/single-board_computer) [microcomputer](/source/microcomputer)<ref>{{Cite web |last=Benchoff |first=Brian |title=PMI-80 |url=https://hackaday.com/tag/pmi-80/ |access-date=2026-03-19 |website=Hackaday |language=en-US}}</ref> produced by [Tesla](/source/Tesla_(Czechoslovak_company)) [Piešťany](/source/Pie%C5%A1%C5%A5any), [Czechoslovakia](/source/Czechoslovakia), since 1982. It was based on the [MHB 8080A](/source/MHB_8080A) [CPU](/source/central_processing_unit)<ref>{{Cite web |title=Tomas Pavlovic Brings Back a Czechoslovakian Classic, the Tesla PMI-80 Single-Board Computer |url=https://www.hackster.io/news/tomas-pavlovic-brings-back-a-czechoslovakian-classic-the-tesla-pmi-80-single-board-computer-6865b23ad544 |access-date=2026-03-19 |website=Hackster.io |language=en}}</ref> (a Tesla clone of the [Intel 8080](/source/Intel_8080)), clocked at 1.111 [MHz](/source/megahertz). Instead of a [raster graphic display](/source/computer_display) output and [classical keyboard](/source/Keyboard_(computing)), it had a [calculator](/source/calculator)-style nine-digit [seven-segment](/source/seven-segment_display) red [LED](/source/light-emitting_diode) display and a 25-key calculator-type keypad with [hexadecimal](/source/hexadecimal) and function keys (including hardware ['''RE'''set](/source/reset_(computing)) and ['''I'''nterrupt](/source/interrupt)). The PMI-80 had 1&nbsp;[KiB](/source/kibibyte) of [ROM](/source/read-only_memory) (expandable to 2&nbsp;KiB) and fixed 1&nbsp;[KiB](/source/kibibyte) of [RWM](/source/read-write_memory). Eight (expandable to 32) [I/O](/source/input%2Foutput) lines were provided for user along with complete system bus. Connected could be e.g., a card with a [DAC](/source/digital-to-analog_converter) of 0–12 [V](/source/volt) range.

== References ==
{{Reflist}}

==External links==
*[https://web.archive.org/web/20101121035354/http://www.old-computers.com/museum/computer.asp?st=1&c=1016 PMI-80 information] &ndash; At the <small>OLD-COMPUTERS.COM</small> website

Category:Single-board computers
Category:Science and technology in Czechoslovakia
Category:Computer-related introductions in 1982

{{microcompu-stub}}

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Adapted from the Wikipedia article [PMI-80](https://en.wikipedia.org/wiki/PMI-80) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/PMI-80?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.