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There were definitely TUIs of various sorts well before 1990, although they tended to be application-specific rather than "operating system" level stuff. Here'

There were definitely TUIs of various sorts well before 1990, although they tended to be application-specific rather than "operating system" level stuff. Here's one I shipped in 1983: https://archive.org/details/byte-magazine-1983-11-rescan/page/n199/mode/2up https://archive.org/details/byte-magazine-1983-11-rescan/pag... A better-known system from the time was Framework, developed by Robert Carr and team and released in 1984: https://en.wikipedia.org/wiki/Framework_(office_suite) https://en.wikipedia.org/wiki/Framework_(office_suite)

postmodest 3y ago
I had never heard of Framework. Here's a link with examples of a later version: https://winworldpc.com/product/framework/xe https://winworldpc.com/product/framework/xe I had only ever seen "embedded" TUIs like on word processors, but even then, I only saw them after the Mac came out, and they were being dumped at thrift stores and flea markets. ...one time in '96, I came across someone selling a complete Xerox Daybreak at a flea market.