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by EvanAnderson 99 days ago
For sure. I knew people who ran multi-line BBS's on DOS PCs under DESQview, just like that (running Searchlight BBS, in my case). I know of a four line that was just using multiple external modems and non-standard IRQ's for COM3 and COM4 (since, by default, COM1/3 and COM2/4 share an IRQ).