C:\SYSTEM> SHELL.EXE
µOS
System Operacyjno-Użytkowy ("Operating-and-User System") for Personal Computer Users — a Polish graphical shell for DOS, designed in 1992 as a teaching tool for the first school computer labs.
C:\SYSTEM> SHELL.EXE
System Operacyjno-Użytkowy ("Operating-and-User System") for Personal Computer Users — a Polish graphical shell for DOS, designed in 1992 as a teaching tool for the first school computer labs.
About the project
In the early 1990s, newly established school computer labs in Poland had to make do with budget PCs — no commercial graphical environment in sight. µOS was built as a response: a graphical shell for DOS in Polish, bundled with a handful of small helper applications, all fitting on a single floppy disk.
This site documents the project's history, its creators, and the surviving source material — from the original installation floppy to its commercial release on a CD published by Albion in 1996.
The site documents preserved material and a present-day reconstruction of the environment in an emulator — it does not present µOS as actively developed software.
Screenshots
Screens from the original µOS installation tutorial, preserved on a 3.5" floppy disk.
Documentation
The project's origins, its creators, development in 1992–1995, and its commercial release.
Borland Pascal, in-house libraries, plug&play, and the contents of the installation floppy.
A review of µOS in Enter magazine, issue 3/1996 (no. 61). (summary, full text in Polish)
Preserved material: floppy image, manual, screenshots. (summary, full text in Polish)