On Tue, Apr 20, 2021 at 10:23 AM Eric Auer <e.a...@jpberlin.de> wrote:
> >> I have just connected my Brother HL-3150CDN laser printer to my Dell>> > >> OptiPlex GX270. > > I used the FreeDOS "print" command, unembellished. > > That is only needed for background printing. A more straightforward > way is to send the printer data to the printer port: COPY x.txt PRN > or COPY x.pdf LPT1 or similar. The PRINT command installed as a resident TSR. It provided the earliest example I am aware of of time slicing under DOS. (If memory serves, you could specify the number of foreground and background ticks for fine tuning. I believe the default was 6 and 2.) It was intended to ease the lives of folks doing writing they needed to print, like secretaries, so they didn't have to stop and sit in their hands waiting for a print job to finish before they could work again. Programmers disassembled MS's code to see how they did that, and a new class of TSR got created. I ran the MKS Toolkit under DOS, which provided the most complete implementation of all the Unix commands that made sense in a single taking environment. When I was booted in the Toolkit, I could use Korn shell aliases and shell functions to duplicate the functionally of the unix lp command, including adding, stopping, and deleting print jobs. Fun. :-) _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
