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Alan Campin wrote:
A GUI is about performance, a server about
stability and security.

Actually, a GUI is a DRAIN on performance. Think about it: the original Macintosh, and the Tandy 6000 were both based on the 68000. The 6000 could run up to 6 concurrent users (5 of them on VT-100-compatible terminals). The Mac 128 barely supported one, and indeed, the first truly viable Mac was the Mac Plus.

Running DOS apps, an 8MHz 8086 was a speeding bullet. Running GEM apps, it was barely adequate. Running even the earliest versions of WinDoze was completely impractical, and running anything beyond WinDoze 2 (maybe 3.0) was outright impossible.

Any hypothetical native GUI for the 400 would have to be based on the graphic extensions to the 5250 data stream, with each terminal handling all its own rendering.


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