The original Oberon tiled interface where commands and menus are text that you run, that generate more text. This still exists in blackbox framework oberon/f which embeds text commands in documents. Personally I like the workspace like text UI more than terminals and repls.
In a workspace commands are retained, and output persists, they don't fly away but remain on the virtual screens..
> This still exists in blackbox framework oberon/f
The Blackbox framework has a Windows GUI and is quite different from the Oberon System v1 and v2. Starting with v3 and the active object system (AOS), the Oberon System had also a GUI, even with a window manager. But Wirth went back to the original TUI in his FPGA based Project Oberon System (see https://www.projectoberon.net/); here is a version or this system which runs on all platforms: https://github.com/rochus-keller/OberonSystem.